Closed Bug 733651 Opened 9 years ago Closed 9 years ago
Snippet fails to load on about:home due to XMLHttp
Request .open error
Steps to reproduce: 1. Open Firefox so that about:home is the page immediately loaded and the update branch is taken in the function loadSnippets(). (This can artificially be induced by setting window.localStorage["snippets-last-update"] to 0 and then restarting Firefox without session restore enabled.) 2. No snippet appears, because the following exception is thrown: Error: uncaught exception: [Exception... "Component returned failure code: 0x805e0006 [nsIXMLHttpRequest.open]" nsresult: "0x805e0006 (<unknown>)" location: "JS frame :: chrome://browser/content/abouthome/aboutHome.js :: loadSnippets :: line 223" data: no] I'm not exactly sure why this happens, but since it corrects itself upon a reload, my guess is that the XMLHttpRequest cannot be properly initialized. This happens already on about:home in Firefox stable and is not due to the new visual refresh code.
Here's a workaround to ensure that at least the default snippets load. We should still investigate why XMLHttpRequest.open throws.
Comment on attachment 603582 [details] [diff] [review] workaround to ensure that at least the default snippets load please file a follow-up to investigate reasons for the exception and add a comment there pointing to that bug.
Attachment #603582 - Flags: review+
Pushed to fx-team: https://hg.mozilla.org/integration/fx-team/rev/63612df32193 Filing followup next.
Assignee: nobody → fryn
Status: NEW → ASSIGNED
Whiteboard: [about-home] → [about-home][fixed-in-fx-team]
https://hg.mozilla.org/mozilla-central/rev/63612df32193 backported with bug 711157
Mozilla/5.0 (Windows NT 6.1; rv:13.0) Gecko/20100101 Firefox/13.0 BuildID: 20120528154913 I evaluated window.localStorage["snippets-last-update"]=0; in the Error Console and restarted Firefox. I didn't get the error from comment 0, but I got: Error: self._interfaceBuilder is undefined Source File: resource://testpilot/modules/setup.js Line: 260 Frank, is that ok or should I set window.localStorage["snippets-last-update"] to 0 some other way?
(In reply to Ioana Budnar [QA] from comment #6) This bug doesn't need further verification. Thanks.
Whiteboard: [about-home][qa+] → [about-home][qa-]
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