diff --git a/content/media/test/test_error_in_video_document.html b/content/media/test/test_error_in_video_document.html
index 8cbc66f3f37..7ec6f322d6c 100644
--- a/content/media/test/test_error_in_video_document.html
+++ b/content/media/test/test_error_in_video_document.html
@@ -26,6 +26,11 @@ var f = document.createElement("iframe");
 
 function check() {
   var v = document.body.getElementsByTagName("iframe")[0].contentDocument.body.getElementsByTagName("video")[0];
+  
+  // Debug info for Bug 608634
+  info(document.body.getElementsByTagName("iframe")[0].src);
+  info(v.src);
+  
   ok(v.error && v.error.code == MediaError.MEDIA_ERR_DECODE, "Must have error set to MEDIA_ERR_DECODE");
   SimpleTest.finish();
 }