diff --git a/test/index.html b/test/index.html
index 637a60c30..959e8ed8e 100644
--- a/test/index.html
+++ b/test/index.html
@@ -172,6 +172,12 @@
       'spec/validations/suspicious_name.js'
     ];
 
+    window.executionErrors = [];
+
+    window.onerror = function (message, source, line, col) {
+      window.executionErrors.push("message" + message + " source" + source + " line" + line + " col" + col);
+    };
+
     var isPhantomJS = !!(navigator.userAgent.match(/PhantomJS/));
     var isIE11 = !!(navigator.userAgent.match(/Trident/) && !navigator.userAgent.match(/MSIE/));
 
@@ -191,6 +197,15 @@
     (function nextScript() {
       if (!scripts.length) {
         window.mocha.run();
+
+        if (window.executionErrors.length > 0){
+          console.log('\n\n[Execution errors exist] Please resolve the following: \n');
+          for (var i = 0; i < window.executionErrors.length; i++){
+            console.log('[Execution error] ' + window.executionErrors[i]);
+          }
+          console.log('\n Disposing mocha. Expect mocha dispose log like: \'Uncaught error outside test suite\'... \n');
+          window.mocha.dispose();
+        }
         return;
       }
       var src = scripts.shift();
diff --git a/test/spec/actions/join.js b/test/spec/actions/join.js
index fecc421de..b7974a3ec 100644
--- a/test/spec/actions/join.js
+++ b/test/spec/actions/join.js
@@ -97,7 +97,7 @@ describe('iD.actionJoin', function () {
         });
 
         ['restriction', 'connectivity'].forEach(function (type) {
-            it(`returns '${type}' in situations where a ${type} relation would be damaged (a)`, function () {
+            it('returns ' + type + ' in situations where a ' + type + 'relation would be damaged (a)', function () {
                 // a --> b ==> c
                 // from: -
                 // to: =
@@ -108,7 +108,7 @@ describe('iD.actionJoin', function () {
                     iD.osmNode({id: 'c', loc: [4,0]}),
                     iD.osmWay({id: '-', nodes: ['a', 'b']}),
                     iD.osmWay({id: '=', nodes: ['b', 'c']}),
-                    iD.osmRelation({id: 'r', tags: {type}, members: [
+                    iD.osmRelation({id: 'r', tags: {'type': type}, members: [
                         {type: 'way', id: '-', role: 'from'},
                         {type: 'way', id: '=', role: 'to'},
                         {type: 'node', id: 'b', role: 'via'}
@@ -118,7 +118,7 @@ describe('iD.actionJoin', function () {
                 expect(iD.actionJoin(['-', '=']).disabled(graph)).to.equal(type);
             });
 
-            it(`returns '${type}' in situations where a ${type} relation would be damaged (b)`, function () {
+            it('returns ' + type + ' in situations where a ' + type + 'relation would be damaged (b)', function () {
                 // a --> b ==> c
                 //       |
                 //       d
@@ -133,7 +133,7 @@ describe('iD.actionJoin', function () {
                     iD.osmWay({id: '-', nodes: ['a', 'b']}),
                     iD.osmWay({id: '=', nodes: ['b', 'c']}),
                     iD.osmWay({id: '|', nodes: ['b', 'd']}),
-                    iD.osmRelation({id: 'r', tags: {type}, members: [
+                    iD.osmRelation({id: 'r', tags: {'type': type}, members: [
                         {type: 'way', id: '-', role: 'from'},
                         {type: 'way', id: '|', role: 'to'},
                         {type: 'node', id: 'b', role: 'via'}
@@ -143,7 +143,7 @@ describe('iD.actionJoin', function () {
                 expect(iD.actionJoin(['-', '=']).disabled(graph)).to.equal(type);
             });
 
-            it(`returns falsy in situations where a ${type} relation wouldn't be damaged (a)`, function () {
+            it('returns falsy in situations where a '+ type + 'relation wouldn\'t be damaged (a)', function () {
                 // a --> b ==> c
                 // |
                 // d
@@ -158,7 +158,7 @@ describe('iD.actionJoin', function () {
                     iD.osmWay({id: '-', nodes: ['a', 'b']}),
                     iD.osmWay({id: '=', nodes: ['b', 'c']}),
                     iD.osmWay({id: '|', nodes: ['a', 'd']}),
-                    iD.osmRelation({id: 'r', tags: {type}, members: [
+                    iD.osmRelation({id: 'r', tags: {'type': type}, members: [
                         {type: 'way', id: '-', role: 'from'},
                         {type: 'way', id: '|', role: 'to'},
                         {type: 'node', id: 'a', role: 'via'}
@@ -168,7 +168,7 @@ describe('iD.actionJoin', function () {
                 expect(iD.actionJoin(['-', '=']).disabled(graph)).not.to.be.ok;
             });
 
-            it(`returns falsy in situations where a ${type} restriction wouldn't be damaged (b)`, function () {
+            it('returns falsy in situations where a ' + type + 'restriction wouldn\'t be damaged (b)', function () {
                 //       d
                 //       |
                 // a --> b ==> c
@@ -187,7 +187,7 @@ describe('iD.actionJoin', function () {
                     iD.osmWay({id: '=', nodes: ['b', 'c']}),
                     iD.osmWay({id: '|', nodes: ['d', 'b']}),
                     iD.osmWay({id: '\\', nodes: ['b', 'e']}),
-                    iD.osmRelation({id: 'r', tags: {type}, members: [
+                    iD.osmRelation({id: 'r', tags: {'type': type}, members: [
                         {type: 'way', id: '|', role: 'from'},
                         {type: 'way', id: '\\', role: 'to'},
                         {type: 'node', id: 'b', role: 'via'}