diff --git a/modules/renderer/background_source.js b/modules/renderer/background_source.js
index 8546082ba..770dcc60d 100644
--- a/modules/renderer/background_source.js
+++ b/modules/renderer/background_source.js
@@ -112,19 +112,19 @@ export function rendererBackgroundSource(data) {
 
 
     source.url = function(coord) {
-        var result = _template;
+        var result = _template.replace(/#.*/su, ''); // strip hash part of URL
         if (result === '') return result;   // source 'none'
 
 
         // Guess a type based on the tokens present in the template
         // (This is for 'custom' source, where we don't know)
         if (!source.type || source.id === 'custom') {
-            if (/SERVICE=WMS|\{(proj|wkid|bbox)\}/.test(_template)) {
+            if (/SERVICE=WMS|\{(proj|wkid|bbox)\}/.test(result)) {
                 source.type = 'wms';
                 source.projection = 'EPSG:3857';  // guess
-            } else if (/\{(x|y)\}/.test(_template)) {
+            } else if (/\{(x|y)\}/.test(result)) {
                 source.type = 'tms';
-            } else if (/\{u\}/.test(_template)) {
+            } else if (/\{u\}/.test(result)) {
                 source.type = 'bing';
             }
         }