Fix URL test and add two small more

Author: humitos

tests/test_htmltag.py

@@ -64,7 +64,9 @@ def test_js_render(app, status, warning):
         "animation: 'fade'",
         "animationDuration: 0",
         "content: 'Loading...'",
-        "var url = 'https://readthedocs.org' + '/api/v2/embed/?' + 'project=' + project + '&version=' + version + '&doc=' + doc + '&path=' + docpath + '&section=' + section;",
+        "var url = 'https://readthedocs.org' + '/api/v2/embed/?' + $.param(params);",
+        "var sphinxtabs = 'false'",
+        "var mathjax = 'false'",
     ]
 
     for chunk in chunks: