diff --git a/my.conf.js b/my.conf.js
index 390582538..243d1b2a4 100644
--- a/my.conf.js
+++ b/my.conf.js
@@ -17,14 +17,11 @@ module.exports = function (config) {
 
     // list of files / patterns to load in the browser
     files: [
-      'node_modules/mocha/mocha.css',
-      'node_modules/mocha/mocha.js',
       'node_modules/chai/chai.js',
       'node_modules/sinon/pkg/sinon.js',
       'node_modules/sinon-chai/lib/sinon-chai.js',
       'node_modules/happen/happen.js',
       'node_modules/fetch-mock/es5/client-bundle.js',
-      { pattern: 'dist/iD.js.map', included: false },
       { pattern: 'dist/iD.js', included: true },
       { pattern: 'dist/iD.css', included: true },
       { pattern: 'dist/**/*', included: false },
diff --git a/package.json b/package.json
index 7fcb7975f..595e7c265 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "quickstart": "npm-run-all -s build:dev start:server",
     "start:server": "node scripts/server.js",
     "test": "npm-run-all -s lint build:css build:data build:legacy test:spec",
-    "test:spec": "phantomjs --web-security=no node_modules/mocha-phantomjs-core/mocha-phantomjs-core.js test/index.html spec",
+    "test:spec": "karma start my.conf.js",
     "translations": "node scripts/update_locales.js"
   },
   "dependencies": {
diff --git a/test/spec/services/osm.js b/test/spec/services/osm.js
index 1e76aadbd..14a9d8966 100644
--- a/test/spec/services/osm.js
+++ b/test/spec/services/osm.js
@@ -34,7 +34,8 @@ describe('iD.serviceOsm', function () {
     });
 
     afterEach(function () {
-        fetchMock.resetBehavior();
+        fetchMock.reset();
+        serverXHR.restore();
     });
 
 
@@ -151,8 +152,8 @@ describe('iD.serviceOsm', function () {
             '}';
 
         it('returns an object', function (done) {
-            fetchMock.mock('http://www.openstreetmap.org' + path, , {
-                body: nodeResponse,
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: response,
                 status: 200,
                 headers: { 'Content-Type': 'application/json' }
             });
@@ -165,63 +166,80 @@ describe('iD.serviceOsm', function () {
         });
 
         it('retries an authenticated call unauthenticated if 400 Bad Request', function (done) {
-            fetchMock.mock('http://www.openstreetmap.org' + path, )
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: response,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
+                [400, { 'Content-Type': 'text/plain' }, 'Bad Request']);
+
             login();
 
             connection.loadFromAPI(path, function (err, xml) {
                 expect(err).to.be.not.ok;
                 expect(typeof xml).to.eql('object');
                 expect(connection.authenticated()).to.be.not.ok;
+                expect(fetchMock.called()).to.be.true;
+
                 done();
             });
 
-            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [400, { 'Content-Type': 'text/plain' }, 'Bad Request']);
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [200, { 'Content-Type': 'application/json' }, response]);
-
             serverXHR.respond();
-            serverFetch.respond();
         });
 
         it('retries an authenticated call unauthenticated if 401 Unauthorized', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: response,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
+                [401, { 'Content-Type': 'text/plain' }, 'Unauthorized']);
+
             login();
             connection.loadFromAPI(path, function (err, xml) {
                 expect(err).to.be.not.ok;
                 expect(typeof xml).to.eql('object');
                 expect(connection.authenticated()).to.be.not.ok;
+                expect(fetchMock.called()).to.be.true;
+
                 done();
             });
 
-            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [401, { 'Content-Type': 'text/plain' }, 'Unauthorized']);
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [200, { 'Content-Type': 'application/json' }, response]);
-
             serverXHR.respond();
-            serverFetch.respond();
         });
 
         it('retries an authenticated call unauthenticated if 403 Forbidden', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: response,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
+                [403, { 'Content-Type': 'text/plain' }, 'Forbidden']);
+
             login();
             connection.loadFromAPI(path, function (err, xml) {
                 expect(err).to.be.not.ok;
                 expect(typeof xml).to.eql('object');
                 expect(connection.authenticated()).to.be.not.ok;
+                expect(fetchMock.called()).to.be.true;
+
                 done();
             });
 
-            serverXHR.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [403, { 'Content-Type': 'text/plain' }, 'Forbidden']);
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [200, { 'Content-Type': 'application/json' }, response]);
-
             serverXHR.respond();
-            serverFetch.respond();
         });
 
 
         it('dispatches change event if 509 Bandwidth Limit Exceeded', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: 'Bandwidth Limit Exceeded',
+                status: 509,
+                headers: { 'Content-Type': 'text/plain' }
+            });
+
             logout();
             connection.on('change', spy);
             connection.loadFromAPI(path, function (err) {
@@ -229,13 +247,15 @@ describe('iD.serviceOsm', function () {
                 expect(spy).to.have.been.calledOnce;
                 done();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [509, { 'Content-Type': 'text/plain' }, 'Bandwidth Limit Exceeded']);
-            serverFetch.respond();
         });
 
         it('dispatches change event if 429 Too Many Requests', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org' + path, {
+                body: '429 Too Many Requests',
+                status: 429,
+                headers: { 'Content-Type': 'text/plain' }
+            });
+
             logout();
             connection.on('change', spy);
             connection.loadFromAPI(path, function (err) {
@@ -243,10 +263,6 @@ describe('iD.serviceOsm', function () {
                 expect(spy).to.have.been.calledOnce;
                 done();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org' + path,
-                [429, { 'Content-Type': 'text/plain' }, '429 Too Many Requests']);
-            serverFetch.respond();
         });
     });
 
@@ -270,13 +286,15 @@ describe('iD.serviceOsm', function () {
         });
 
         it('calls callback when data tiles are loaded', function (done) {
+            fetchMock.mock(/map.json\?bbox/, {
+                body: tileResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var spy = sinon.spy();
             connection.loadTiles(context.projection, spy);
 
-            serverFetch.respondWith('GET', /map.json\?bbox/,
-                [200, { 'Content-Type': 'application/json' }, tileResponse]);
-            serverFetch.respond();
-
             window.setTimeout(function () {
                 expect(spy).to.have.been.calledOnce;
                 done();
@@ -284,15 +302,27 @@ describe('iD.serviceOsm', function () {
         });
 
         it('#isDataLoaded', function (done) {
-            expect(connection.isDataLoaded([-74.0444216, 40.6694299])).to.be.not.ok;
+            fetchMock.mock(/map.json\?bbox/, {
+                body: tileResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
+            // resetting the cache
+            const caches = connection.caches('get');
+            caches.tile.toLoad = {};
+            caches.tile.loaded = {};
+            caches.tile.inflight = {};
+            caches.tile.seen = {};
+            caches.tile.rtree.clear();
+
+            expect(connection.isDataLoaded([-74.0444216, 40.6694299])).to.be.false;
 
             connection.loadTiles(context.projection);
-            serverFetch.respondWith('GET', /map.json\?bbox/,
-                [200, { 'Content-Type': 'application/json' }, tileResponse]);
-            serverFetch.respond();
 
             window.setTimeout(function () {
-                expect(connection.isDataLoaded([-74.0444216, 40.6694299])).to.be.ok;
+                expect(fetchMock.called()).to.be.true;
+                expect(connection.isDataLoaded([-74.0444216, 40.6694299])).to.be.true;
                 done();
             }, 500);
         });
@@ -332,34 +362,38 @@ describe('iD.serviceOsm', function () {
         });
 
         it('loads a way', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org/api/0.6/way/1/full.json', {
+                body: wayResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var id = 'w1';
             connection.loadEntity(id, function (err, result) {
                 var entity = result.data.find(function (e) { return e.id === id; });
                 expect(entity).to.be.an.instanceOf(iD.osmWay);
                 done();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/0.6/way/1/full.json',
-                [200, { 'Content-Type': 'application/json' }, wayResponse]);
-            serverFetch.respond();
         });
 
         it('does not ignore repeat requests', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org/api/0.6/node/1.json', {
+                body: wayResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var id = 'n1';
             connection.loadEntity(id, function (err1, result1) {
                 var entity1 = result1.data.find(function (e1) { return e1.id === id; });
                 expect(entity1).to.be.an.instanceOf(iD.osmNode);
+
                 connection.loadEntity(id, function (err2, result2) {
                     var entity2 = result2.data.find(function (e2) { return e2.id === id; });
                     expect(entity2).to.be.an.instanceOf(iD.osmNode);
                     done();
                 });
-                serverFetch.respond();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/0.6/node/1.json',
-                [200, { 'Content-Type': 'application/json' }, nodeResponse]);
-            serverFetch.respond();
         });
     });
 
@@ -382,32 +416,42 @@ describe('iD.serviceOsm', function () {
             '}';
 
         it('loads a node', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org/api/0.6/node/1/1.json', {
+                body: nodeResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var id = 'n1';
             connection.loadEntityVersion(id, 1, function (err, result) {
                 var entity = result.data.find(function (e) { return e.id === id; });
                 expect(entity).to.be.an.instanceOf(iD.osmNode);
                 done();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/0.6/node/1/1.json',
-                [200, { 'Content-Type': 'application/json' }, nodeResponse]);
-            serverFetch.respond();
         });
 
         it('loads a way', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org/api/0.6/way/1/1.json', {
+                body: wayResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var id = 'w1';
             connection.loadEntityVersion(id, 1, function (err, result) {
                 var entity = result.data.find(function (e) { return e.id === id; });
                 expect(entity).to.be.an.instanceOf(iD.osmWay);
                 done();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/0.6/way/1/1.json',
-                [200, { 'Content-Type': 'application/json' }, wayResponse]);
-            serverFetch.respond();
         });
 
         it('does not ignore repeat requests', function (done) {
+            fetchMock.mock('http://www.openstreetmap.org/api/0.6/node/1/1.json', {
+                body: nodeResponse,
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var id = 'n1';
             connection.loadEntityVersion(id, 1, function (err1, result1) {
                 var entity1 = result1.data.find(function (e1) { return e1.id === id; });
@@ -417,12 +461,7 @@ describe('iD.serviceOsm', function () {
                     expect(entity2).to.be.an.instanceOf(iD.osmNode);
                     done();
                 });
-                serverFetch.respond();
             });
-
-            serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/0.6/node/1/1.json',
-                [200, { 'Content-Type': 'application/json' }, nodeResponse]);
-            serverFetch.respond();
         });
     });
 
@@ -611,13 +650,15 @@ describe('iD.serviceOsm', function () {
         });
 
         it('fires loadedNotes when notes are loaded', function (done) {
+            fetchMock.mock(/notes\?/, {
+                body: notesXML,
+                status: 200,
+                headers: { 'Content-Type': 'text/xml' }
+            });
+
             connection.on('loadedNotes', spy);
             connection.loadNotes(context.projection, {});
 
-            serverFetch.respondWith('GET', /notes\?/,
-                [200, { 'Content-Type': 'text/xml' }, notesXML]);
-            serverFetch.respond();
-
             window.setTimeout(function () {
                 expect(spy).to.have.been.calledOnce;
                 done();
@@ -704,47 +745,58 @@ describe('iD.serviceOsm', function () {
 
 
     describe('API capabilities', function () {
-        var capabilitiesXML = '<?xml version="1.0" encoding="UTF-8"?>' +
-            '<osm>' +
-            '<api>' +
-            '<version minimum="0.6" maximum="0.6"/>' +
-            '<area maximum="0.25"/>' +
-            '<tracepoints per_page="5000"/>' +
-            '<waynodes maximum="2000"/>' +
-            '<changesets maximum_elements="50000"/>' +
-            '<timeout seconds="300"/>' +
-            '<status database="online" api="online" gpx="online"/>' +
-            '</api>' +
-            '<policy><imagery>' +
-            '<blacklist regex="\.foo\.com"/>' +
-            '<blacklist regex="\.bar\.org"/>' +
-            '</imagery></policy>' +
-            '</osm>';
+        var capabilitiesXML = `<?xml version="1.0" encoding="UTF-8"?>
+        <osm version="0.6" generator="OpenStreetMap server" copyright="OpenStreetMap and contributors" attribution="http://www.openstreetmap.org/copyright" license="http://opendatacommons.org/licenses/odbl/1-0/">
+            <api>
+                <version minimum="0.6" maximum="0.6"/>
+                <area maximum="0.25"/>
+                <note_area maximum="25"/>
+                <tracepoints per_page="5000"/>
+                <waynodes maximum="2000"/>
+                <changesets maximum_elements="50000"/>
+                <timeout seconds="300"/>
+                <status database="online" api="online" gpx="online"/>
+            </api>
+            <policy>
+                <imagery>
+                    <blacklist regex="\.foo\.com"/>
+                    <blacklist regex="\.bar\.org"/>
+                </imagery>
+            </policy>
+        </osm>`;
 
         describe('#status', function () {
             it('gets API status', function (done) {
+                fetchMock.mock('http://www.openstreetmap.org/api/capabilities', {
+                    body: capabilitiesXML,
+                    status: 200,
+                    headers: { 'Content-Type': 'text/xml' }
+                }, {
+                    overwriteRoutes: true
+                });
+
                 connection.status(function (err, val) {
                     expect(val).to.eql('online');
                     done();
                 });
-
-                serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/capabilities',
-                    [200, { 'Content-Type': 'text/xml' }, capabilitiesXML]);
-                serverFetch.respond();
             });
         });
 
         describe('#imageryBlocklists', function () {
             it('updates imagery blocklists', function (done) {
+                fetchMock.mock('http://www.openstreetmap.org/api/capabilities', {
+                    body: capabilitiesXML,
+                    status: 200,
+                    headers: { 'Content-Type': 'text/xml' }
+                }, {
+                    overwriteRoutes: true
+                });
+
                 connection.status(function () {
                     var blocklists = connection.imageryBlocklists();
                     expect(blocklists).to.deep.equal([new RegExp('\.foo\.com'), new RegExp('\.bar\.org')]);
                     done();
                 });
-
-                serverFetch.respondWith('GET', 'http://www.openstreetmap.org/api/capabilities',
-                    [200, { 'Content-Type': 'text/xml' }, capabilitiesXML]);
-                serverFetch.respond();
             });
         });
 
diff --git a/test/spec/services/taginfo.js b/test/spec/services/taginfo.js
index 0207fa0bd..3fe2e3094 100644
--- a/test/spec/services/taginfo.js
+++ b/test/spec/services/taginfo.js
@@ -1,404 +1,401 @@
-describe('iD.serviceTaginfo', function() {
-    var server, taginfo;
+describe('iD.serviceTaginfo', function () {
+    var taginfo;
 
 
-    before(function() {
+    before(function () {
         iD.services.taginfo = iD.serviceTaginfo;
     });
 
-    after(function() {
+    after(function () {
         delete iD.services.taginfo;
     });
 
-    beforeEach(function() {
-        server = window.fakeFetch().create();
+    beforeEach(function () {
         taginfo = iD.services.taginfo;
 
+        fetchMock.mock(new RegExp('\/keys\/all.*sortname=values_all'), {
+            body: '{"data":[{"count_all":56136034,"key":"name","count_all_fraction":0.0132}]}',
+            status: 200,
+            headers: { 'Content-Type': 'application/json' }
+        });
+
         // prepopulate popular keys list with "name"
         taginfo.init();
-        server.respondWith('GET',
-            new RegExp('\/keys\/all.*sortname=values_all'),
-            [200, { 'Content-Type': 'application/json' },
-                '{"data":[{"count_all":56136034,"key":"name","count_all_fraction":0.0132}]}']
-        );
-        server.respond();
-        server.restore();
-        server = window.fakeFetch().create();
+        fetchMock.reset();
     });
 
-    afterEach(function() {
-        server.restore();
+    afterEach(function () {
+        fetchMock.reset();
     });
 
-    function query(url) {
+    function parseQueryString(url) {
         return iD.utilStringQs(url.substring(url.indexOf('?')));
     }
 
+    describe('#keys', function () {
+        it('calls the given callback with the results of the keys query', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":5190337,"key":"amenity","count_all_fraction":1.0}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
 
-    describe('#keys', function() {
-        it('calls the given callback with the results of the keys query', function(done) {
             var callback = sinon.spy();
-            taginfo.keys({query: 'amen'}, callback);
+            taginfo.keys({ query: 'amen' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":5190337,"key":"amenity","count_all_fraction":1.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
-                expect(query(server.requests()[0].url)).to.eql(
-                    {query: 'amen', page: '1', rp: '10', sortname: 'count_all', sortorder: 'desc', lang: 'en'}
+            window.setTimeout(function () {
+                expect(parseQueryString(fetchMock.calls()[0][0])).to.eql(
+                    { query: 'amen', page: '1', rp: '10', sortname: 'count_all', sortorder: 'desc', lang: 'en' }
                 );
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'amenity', 'value':'amenity'}]
+                    null, [{ 'title': 'amenity', 'value': 'amenity' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes popular keys', function(done) {
+        it('includes popular keys', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":5190337,"count_nodes":500000,"key":"amenity","count_all_fraction":1.0, "count_nodes_fraction":1.0},'
+                    + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0, "count_nodes":100}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.keys({query: 'amen'}, callback);
+            taginfo.keys({ query: 'amen' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":5190337,"key":"amenity","count_all_fraction":1.0,"count_nodes_fraction":1.0},'
-                          + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0,"count_nodes_fraction":0.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'amenity', 'value':'amenity'}]
+                    null, [{ 'title': 'amenity', 'value': 'amenity' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes popular keys with an entity type filter', function(done) {
+        it('includes popular keys with an entity type filter', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":5190337,"count_nodes":500000,"key":"amenity","count_all_fraction":1.0, "count_nodes_fraction":1.0},'
+                    + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0, "count_nodes":100}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.keys({query: 'amen', filter: 'nodes'}, callback);
+            taginfo.keys({ query: 'amen', filter: 'nodes' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":5190337,"count_nodes":500000,"key":"amenity","count_all_fraction":1.0, "count_nodes_fraction":1.0},'
-                            + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0, "count_nodes":100}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'amenity', 'value':'amenity'}]
+                    null, [{ 'title': 'amenity', 'value': 'amenity' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes unpopular keys with a wiki page', function(done) {
+        it('includes unpopular keys with a wiki page', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":5190337,"key":"amenity","count_all_fraction":1.0, "count_nodes_fraction":1.0},'
+                    + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0, "count_nodes_fraction":0.0, "in_wiki": true}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.keys({query: 'amen'}, callback);
+            taginfo.keys({ query: 'amen' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":5190337,"key":"amenity","count_all_fraction":1.0, "count_nodes_fraction":1.0},'
-                            + '{"count_all":1,"key":"amenityother","count_all_fraction":0.0, "count_nodes_fraction":0.0, "in_wiki": true}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(null, [
-                    {'title':'amenity', 'value':'amenity'},
-                    {'title':'amenityother', 'value':'amenityother'}
+                    { 'title': 'amenity', 'value': 'amenity' },
+                    { 'title': 'amenityother', 'value': 'amenityother' }
                 ]);
                 done();
             }, 50);
         });
 
-        it('sorts keys with \':\' below keys without \':\'', function(done) {
+        it('sorts keys with \':\' below keys without \':\'', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"key":"ref:bag","count_all":9790586,"count_all_fraction":0.0028},' +
+                    '{"key":"ref","count_all":7933528,"count_all_fraction":0.0023}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.keys({query: 'ref'}, callback);
+            taginfo.keys({ query: 'ref' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"key":"ref:bag","count_all":9790586,"count_all_fraction":0.0028},' +
-                            '{"key":"ref","count_all":7933528,"count_all_fraction":0.0023}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'ref', 'value':'ref'},{'title':'ref:bag', 'value':'ref:bag'}]
+                    null, [{ 'title': 'ref', 'value': 'ref' }, { 'title': 'ref:bag', 'value': 'ref:bag' }]
                 );
                 done();
             }, 50);
         });
     });
 
-    describe('#multikeys', function() {
-        it('calls the given callback with the results of the multikeys query', function(done) {
+    describe('#multikeys', function () {
+        it('calls the given callback with the results of the multikeys query', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":69593,"key":"recycling:glass","count_all_fraction":0.0}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.multikeys({query: 'recycling:'}, callback);
+            taginfo.multikeys({ query: 'recycling:' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":69593,"key":"recycling:glass","count_all_fraction":0.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
-                expect(query(server.requests()[0].url)).to.eql(
-                    {query: 'recycling:', page: '1', rp: '25', sortname: 'count_all', sortorder: 'desc', lang: 'en'}
+            window.setTimeout(function () {
+                expect(parseQueryString(fetchMock.calls()[0][0])).to.eql(
+                    { query: 'recycling:', page: '1', rp: '25', sortname: 'count_all', sortorder: 'desc', lang: 'en' }
                 );
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'recycling:glass', 'value':'recycling:glass'}]
+                    null, [{ 'title': 'recycling:glass', 'value': 'recycling:glass' }]
                 );
                 done();
             }, 50);
         });
 
-        it('excludes multikeys with extra colons', function(done) {
+        it('excludes multikeys with extra colons', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":4426,"key":"service:bicycle:retail","count_all_fraction":0.0},' +
+                    '{"count_all":22,"key":"service:bicycle:retail:ebikes","count_all_fraction":0.0}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.multikeys({query: 'service:bicycle:'}, callback);
+            taginfo.multikeys({ query: 'service:bicycle:' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":4426,"key":"service:bicycle:retail","count_all_fraction":0.0},' +
-                            '{"count_all":22,"key":"service:bicycle:retail:ebikes","count_all_fraction":0.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'service:bicycle:retail', 'value':'service:bicycle:retail'}]
+                    null, [{ 'title': 'service:bicycle:retail', 'value': 'service:bicycle:retail' }]
                 );
                 done();
             }, 50);
         });
 
-        it('excludes multikeys with wrong prefix', function(done) {
+        it('excludes multikeys with wrong prefix', function (done) {
+            fetchMock.mock(/\/keys\/all/, {
+                body: '{"data":[{"count_all":4426,"key":"service:bicycle:retail","count_all_fraction":0.0},' +
+                    '{"count_all":22,"key":"disused:service:bicycle","count_all_fraction":0.0}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.multikeys({query: 'service:bicycle:'}, callback);
+            taginfo.multikeys({ query: 'service:bicycle:' }, callback);
 
-            server.respondWith('GET', /\/keys\/all/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"count_all":4426,"key":"service:bicycle:retail","count_all_fraction":0.0},' +
-                            '{"count_all":22,"key":"disused:service:bicycle","count_all_fraction":0.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'title':'service:bicycle:retail', 'value':'service:bicycle:retail'}]
+                    null, [{ 'title': 'service:bicycle:retail', 'value': 'service:bicycle:retail' }]
                 );
                 done();
             }, 50);
         });
     });
 
-    describe('#values', function() {
-        it('calls the given callback with the results of the values query', function(done) {
+    describe('#values', function () {
+        it('calls the given callback with the results of the values query', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":0.1}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'amenity', query: 'par'}, callback);
+            taginfo.values({ key: 'amenity', query: 'par' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":0.1}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
-                expect(query(server.requests()[0].url)).to.eql(
-                    {key: 'amenity', query: 'par', page: '1', rp: '25', sortname: 'count_all', sortorder: 'desc', lang: 'en'}
+            window.setTimeout(function () {
+                expect(parseQueryString(fetchMock.calls()[0][0])).to.eql(
+                    { key: 'amenity', query: 'par', page: '1', rp: '25', sortname: 'count_all', sortorder: 'desc', lang: 'en' }
                 );
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'parking','title':'A place for parking cars'}]
+                    null, [{ 'value': 'parking', 'title': 'A place for parking cars' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes popular values', function(done) {
+        it('includes popular values', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":1.0},' +
+                    '{"value":"party","description":"A place for partying", "fraction":0.0}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'amenity', query: 'par'}, callback);
+            taginfo.values({ key: 'amenity', query: 'par' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":1.0},' +
-                              '{"value":"party","description":"A place for partying", "fraction":0.0}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'parking','title':'A place for parking cars'}]
+                    null, [{ 'value': 'parking', 'title': 'A place for parking cars' }]
                 );
                 done();
             }, 50);
         });
 
-        it('does not get values for extremely unpopular keys', function(done) {
+        it('does not get values for extremely unpopular keys', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"Rue Pasteur","description":"", "fraction":0.0001},' +
+                    '{"value":"Via Trieste","description":"", "fraction":0.0001}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'name', query: 'ste'}, callback);
+            taginfo.values({ key: 'name', query: 'ste' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"Rue Pasteur","description":"", "fraction":0.0001},' +
-                              '{"value":"Via Trieste","description":"", "fraction":0.0001}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(null, []);
                 done();
             }, 50);
         });
 
-        it('excludes values with capital letters and some punctuation', function(done) {
+        it('excludes values with capital letters and some punctuation', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":0.2},'
+                    + '{"value":"PArking","description":"A common misspelling", "fraction":0.2},'
+                    + '{"value":"parking;partying","description":"A place for parking cars *and* partying", "fraction":0.2},'
+                    + '{"value":"parking, partying","description":"A place for parking cars *and* partying", "fraction":0.2},'
+                    + '{"value":"*","description":"", "fraction":0.2}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'amenity', query: 'par'}, callback);
+            taginfo.values({ key: 'amenity', query: 'par' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"parking","description":"A place for parking cars", "fraction":0.2},'
-                            + '{"value":"PArking","description":"A common misspelling", "fraction":0.2},'
-                            + '{"value":"parking;partying","description":"A place for parking cars *and* partying", "fraction":0.2},'
-                            + '{"value":"parking, partying","description":"A place for parking cars *and* partying", "fraction":0.2},'
-                            + '{"value":"*","description":"", "fraction":0.2}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'parking','title':'A place for parking cars'}]
+                    null, [{ 'value': 'parking', 'title': 'A place for parking cars' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes network values with capital letters and some punctuation', function(done) {
+        it('includes network values with capital letters and some punctuation', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"US:TX:FM","description":"Farm to Market Roads in the U.S. state of Texas.", "fraction":0.34},'
+                    + '{"value":"US:KY","description":"Primary and secondary state highways in the U.S. state of Kentucky.", "fraction":0.31},'
+                    + '{"value":"US:US","description":"U.S. routes in the United States.", "fraction":0.19},'
+                    + '{"value":"US:I","description":"Interstate highways in the United States.", "fraction":0.11},'
+                    + '{"value":"US:MD","description":"State highways in the U.S. state of Maryland.", "fraction":0.06}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'network', query: 'us'}, callback);
+            taginfo.values({ key: 'network', query: 'us' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"US:TX:FM","description":"Farm to Market Roads in the U.S. state of Texas.", "fraction":0.34},'
-                            + '{"value":"US:KY","description":"Primary and secondary state highways in the U.S. state of Kentucky.", "fraction":0.31},'
-                            + '{"value":"US:US","description":"U.S. routes in the United States.", "fraction":0.19},'
-                            + '{"value":"US:I","description":"Interstate highways in the United States.", "fraction":0.11},'
-                            + '{"value":"US:MD","description":"State highways in the U.S. state of Maryland.", "fraction":0.06}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(null, [
-                    {'value':'US:TX:FM','title':'Farm to Market Roads in the U.S. state of Texas.'},
-                    {'value':'US:KY','title':'Primary and secondary state highways in the U.S. state of Kentucky.'},
-                    {'value':'US:US','title':'U.S. routes in the United States.'},
-                    {'value':'US:I','title':'Interstate highways in the United States.'},
-                    {'value':'US:MD','title':'State highways in the U.S. state of Maryland.'}
+                    { 'value': 'US:TX:FM', 'title': 'Farm to Market Roads in the U.S. state of Texas.' },
+                    { 'value': 'US:KY', 'title': 'Primary and secondary state highways in the U.S. state of Kentucky.' },
+                    { 'value': 'US:US', 'title': 'U.S. routes in the United States.' },
+                    { 'value': 'US:I', 'title': 'Interstate highways in the United States.' },
+                    { 'value': 'US:MD', 'title': 'State highways in the U.S. state of Maryland.' }
                 ]);
                 done();
             }, 50);
         });
 
-        it('includes biological genus values with capital letters', function(done) {
+        it('includes biological genus values with capital letters', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"Quercus","description":"Oak", "fraction":0.5}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'genus', query: 'qu'}, callback);
+            taginfo.values({ key: 'genus', query: 'qu' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"Quercus","description":"Oak", "fraction":0.5}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'Quercus','title':'Oak'}]
+                    null, [{ 'value': 'Quercus', 'title': 'Oak' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes biological taxon values with capital letters', function(done) {
+        it('includes biological taxon values with capital letters', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"Quercus robur","description":"Oak", "fraction":0.5}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'taxon', query: 'qu'}, callback);
+            taginfo.values({ key: 'taxon', query: 'qu' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"Quercus robur","description":"Oak", "fraction":0.5}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'Quercus robur','title':'Oak'}]
+                    null, [{ 'value': 'Quercus robur', 'title': 'Oak' }]
                 );
                 done();
             }, 50);
         });
 
-        it('includes biological species values with capital letters', function(done) {
+        it('includes biological species values with capital letters', function (done) {
+            fetchMock.mock(/\/key\/values/, {
+                body: '{"data":[{"value":"Quercus robur","description":"Oak", "fraction":0.5}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.values({key: 'species', query: 'qu'}, callback);
+            taginfo.values({ key: 'species', query: 'qu' }, callback);
 
-            server.respondWith('GET', /\/key\/values/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"value":"Quercus robur","description":"Oak", "fraction":0.5}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
+            window.setTimeout(function () {
                 expect(callback).to.have.been.calledWith(
-                    null, [{'value':'Quercus robur','title':'Oak'}]
+                    null, [{ 'value': 'Quercus robur', 'title': 'Oak' }]
                 );
                 done();
             }, 50);
         });
     });
 
-    describe('#roles', function() {
-        it('calls the given callback with the results of the roles query', function(done) {
+    describe('#roles', function () {
+        it('calls the given callback with the results of the roles query', function (done) {
+            fetchMock.mock(/\/relation\/roles/, {
+                body: '{"data":[{"role":"stop","count_relation_members_fraction":0.1757},' +
+                    '{"role":"south","count_relation_members_fraction":0.0035}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.roles({rtype: 'route', query: 's', geometry: 'relation'}, callback);
+            taginfo.roles({ rtype: 'route', query: 's', geometry: 'relation' }, callback);
 
-            server.respondWith('GET', /\/relation\/roles/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"role":"stop","count_relation_members_fraction":0.1757},' +
-                             '{"role":"south","count_relation_members_fraction":0.0035}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
-                expect(query(server.requests()[0].url)).to.eql(
-                    {rtype: 'route', query: 's', page: '1', rp: '25', sortname: 'count_relation_members', sortorder: 'desc', lang: 'en'}
+            window.setTimeout(function () {
+                expect(parseQueryString(fetchMock.calls()[0][0])).to.eql(
+                    { rtype: 'route', query: 's', page: '1', rp: '25', sortname: 'count_relation_members', sortorder: 'desc', lang: 'en' }
                 );
                 expect(callback).to.have.been.calledWith(null, [
-                    {'value': 'stop', 'title': 'stop'},
-                    {'value': 'south', 'title': 'south'}
+                    { 'value': 'stop', 'title': 'stop' },
+                    { 'value': 'south', 'title': 'south' }
                 ]);
                 done();
             }, 50);
         });
     });
 
-    describe('#docs', function() {
-        it('calls the given callback with the results of the docs query', function(done) {
+    describe('#docs', function () {
+        it('calls the given callback with the results of the docs query', function (done) {
+            fetchMock.mock(/\/tag\/wiki_page/, {
+                body: '{"data":[{"on_way":false,"lang":"en","on_area":true,"image":"File:Car park2.jpg"}]}',
+                status: 200,
+                headers: { 'Content-Type': 'application/json' }
+            });
+
             var callback = sinon.spy();
-            taginfo.docs({key: 'amenity', value: 'parking'}, callback);
+            taginfo.docs({ key: 'amenity', value: 'parking' }, callback);
 
-            server.respondWith('GET', /\/tag\/wiki_page/,
-                [200, { 'Content-Type': 'application/json' },
-                    '{"data":[{"on_way":false,"lang":"en","on_area":true,"image":"File:Car park2.jpg"}]}']
-            );
-            server.respond();
-
-            window.setTimeout(function() {
-                expect(query(server.requests()[0].url)).to.eql(
-                    {key: 'amenity', value: 'parking'}
+            window.setTimeout(function () {
+                expect(parseQueryString(fetchMock.calls()[0][0])).to.eql(
+                    { key: 'amenity', value: 'parking' }
                 );
                 expect(callback).to.have.been.calledWith(
-                    null, [{'on_way':false,'lang':'en','on_area':true,'image':'File:Car park2.jpg'}]
+                    null, [{ 'on_way': false, 'lang': 'en', 'on_area': true, 'image': 'File:Car park2.jpg' }]
                 );
                 done();
             }, 50);
diff --git a/test/spec/spec_helpers.js b/test/spec/spec_helpers.js
index 17fe57ccc..baccff507 100644
--- a/test/spec/spec_helpers.js
+++ b/test/spec/spec_helpers.js
@@ -113,9 +113,7 @@ window.d3 = iD.d3;   // Remove this if we can avoid exporting all of d3.js
 delete window.PointerEvent;  // force the brower to use mouse events
 
 // some sticky fallbacks
-
-fetchMock.mock('https://www.openstreetmap.org/api/capabilities', `
-<?xml version="1.0" encoding="UTF-8"?>
+const capabilities = `<?xml version="1.0" encoding="UTF-8"?>
 <osm version="0.6" generator="OpenStreetMap server" copyright="OpenStreetMap and contributors" attribution="http://www.openstreetmap.org/copyright" license="http://opendatacommons.org/licenses/odbl/1-0/">
   <api>
     <version minimum="0.6" maximum="0.6"/>
@@ -134,7 +132,10 @@ fetchMock.mock('https://www.openstreetmap.org/api/capabilities', `
       <blacklist regex=".*\.here\.com[/:].*"/>
     </imagery>
   </policy>
-</osm>
-`, {sticky: true});
+</osm>`;
 
-fetchMock.config.fallbackToNetwork = true;
\ No newline at end of file
+fetchMock.sticky('https://www.openstreetmap.org/api/capabilities', capabilities, {sticky: true});
+fetchMock.sticky('http://www.openstreetmap.org/api/capabilities', capabilities, {sticky: true});
+
+fetchMock.config.fallbackToNetwork = true;
+fetchMock.config.overwriteRoutes = false;
\ No newline at end of file
diff --git a/test/spec/util/util.js b/test/spec/util/util.js
index 95f8e1c18..3490e2ad0 100644
--- a/test/spec/util/util.js
+++ b/test/spec/util/util.js
@@ -78,7 +78,7 @@ describe('iD.util', function() {
         expect(iD.utilTagText({tags:{foo:'bar',two:'three'}})).to.eql('foo=bar, two=three');
     });
 
-    it('utilStringQs', function() {
+    describe('utilStringQs', function() {
         it('splits a parameter string into k=v pairs', function() {
             expect(iD.utilStringQs('foo=bar')).to.eql({foo: 'bar'});
             expect(iD.utilStringQs('foo=bar&one=2')).to.eql({foo: 'bar', one: '2' });