--- a/layout/style/test/test_bug1112014.html
+++ b/layout/style/test/test_bug1112014.html
@@ -84,30 +84,30 @@ https://bugzilla.mozilla.org/show_bug.cg
 
   // Ensure that all the TYPE_ constants have a representative
   // test value, to try to ensure that this test is updated
   // whenever a new type is added.
   let reps = [];
   for (let tc in InspectorUtils) {
     if (/TYPE_/.test(tc)) {
       if (!(tc in testValues)) {
-	reps.push(tc);
+        reps.push(tc);
       }
     }
   }
   is(reps.join(","), "", "all types have representative test value");
 
   for (let propertyName in gCSSProperties) {
     let prop = gCSSProperties[propertyName];
 
     for (let iter in testValues) {
       let testValue = testValues[iter];
       if (propertyName in overrideValues &&
-	  iter in overrideValues[propertyName]) {
-	testValue = overrideValues[propertyName][iter];
+          iter in overrideValues[propertyName]) {
+        testValue = overrideValues[propertyName][iter];
       }
 
       let supported =
         InspectorUtils.cssPropertySupportsType(propertyName, InspectorUtils[iter]);
       let parsed = CSS.supports(propertyName, testValue);
       is(supported, parsed, propertyName + " supports " + iter);
     }
   }