--- a/dom/smil/test/db_smilCSSFromTo.js
+++ b/dom/smil/test/db_smilCSSFromTo.js
@@ -149,22 +149,22 @@ var _fromToTestLists = {
                            { fromComp: "0", midComp: "0.2", toComp: "1" },
                            "opacities with abs val >1 get clamped too early"),
     new AnimTestcaseFromTo("-0.6", "1.4",
                            { fromComp: "0", midComp: "0.4", toComp: "1" },
                            "opacities with abs val >1 get clamped too early"),
   ],
   URIsAndNone: [
     new AnimTestcaseFromTo("url(#idA)", "url(#idB)",
-                           { fromComp: "url(\"" + document.URL + "#idA\")",
-                             toComp: "url(\"" + document.URL + "#idB\")"}),
+                           { fromComp: "url(\"#idA\")",
+                             toComp: "url(\"#idB\")"}),
     new AnimTestcaseFromTo("none", "url(#idB)",
-                           { toComp: "url(\"" + document.URL + "#idB\")"}),
+                           { toComp: "url(\"#idB\")"}),
     new AnimTestcaseFromTo("url(#idB)", "inherit",
-                           { fromComp: "url(\"" + document.URL + "#idB\")",
+                           { fromComp: "url(\"#idB\")",
                              toComp: "none"}),
   ],
 };
 
 // List of attribute/testcase-list bundles to be tested
 var gFromToBundles = [
   new TestcaseBundle(gPropList.clip, [
     new AnimTestcaseFromTo("rect(1px, 2px, 3px, 4px)",

--- a/layout/style/test/test_transitions_per_property.html
+++ b/layout/style/test/test_transitions_per_property.html
@@ -852,32 +852,32 @@ var filterTests = [
   { start: "contrast(25%) brightness(0.5) blur(50px)",
     end: "contrast(75%)",
     expected: ["contrast", 0.375, "brightness", 0.625, "blur", 37.5] },
   // mismatching filter functions
   { start: "contrast(0%)", end: "blur(10px)",
     expected: ["blur", 10] },
   // not supported interpolations
   { start: "none", end: "url('#b')",
-    expected: ["url", "\""+document.URL+"#b\""] },
+    expected: ["url", "\"#b\""] },
   { start: "url('#a')", end: "none",
     expected: ["none"] },
   { start: "url('#a')", end: "url('#b')",
-    expected: ["url", "\""+document.URL+"#b\""] },
+    expected: ["url", "\"#b\""] },
   { start: "url('#a')", end: "blur(10px)",
     expected: ["blur", 10] },
   { start: "blur(10px)", end: "url('#a')",
-    expected: ["url", "\""+document.URL+"#a\""] },
+    expected: ["url", "\"#a\""] },
   { start: "blur(0px) url('#a')", end: "blur(20px)",
     expected: ["blur", 20] },
   { start: "blur(0px)", end: "blur(20px) url('#a')",
-    expected: ["blur", 20, "url", "\""+document.URL+"#a\""] },
+    expected: ["blur", 20, "url", "\"#a\""] },
   { start: "contrast(0.25) brightness(0.25) blur(25px)",
     end: "contrast(0.75) url('#a')",
-    expected: ["contrast", 0.75, "url", "\""+document.URL+"#a\""] },
+    expected: ["contrast", 0.75, "url", "\"#a\""] },
   { start: "contrast(0.25) brightness(0.25) blur(75px)",
     end: "brightness(0.75) contrast(0.75) blur(25px)",
     expected: ["brightness", 0.75, "contrast", 0.75, "blur", 25] },
   { start: "contrast(0.25) brightness(0.25) blur(25px)",
     end: "contrast(0.75) brightness(0.75) contrast(0.75)",
     expected: ["contrast", 0.75, "brightness", 0.75, "contrast", 0.75] },
   // drop-shadow animation
   { start: "none",