[tbb-bugs] #17597 [Tor Browser]: XMLHttpRequest::open throws an exception

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Feb 8 16:09:43 UTC 2016

#17597: XMLHttpRequest::open throws an exception
 Reporter:  cypherpunks                      |          Owner:  tbb-team
     Type:  defect                           |         Status:
 Priority:  Low                              |  needs_information
Component:  Tor Browser                      |      Milestone:
 Severity:  Normal                           |        Version:
 Keywords:  XMLHttpRequest, JavaScript, API  |     Resolution:
Parent ID:                                   |  Actual Points:
  Sponsor:                                   |         Points:

Comment (by bugzilla):

 Usually see that something is writing in Browser Console, but there are so
 many messages that it's hard to monitor them while surfing.
 XHR EXC was seen rarely.
 Most common messages are:

 NS_ERROR_FAILURE: Component returned failure code: 0x80004005
 (NS_ERROR_FAILURE) [nsITaskbarTabPreview.invalidate]

 NS_ERROR_NOT_AVAILABLE: Component returned failure code: 0x80040111
 (NS_ERROR_NOT_AVAILABLE) [nsIMIMEService.getTypeFromExtension]

 getFirstPartyURI failed for
 https://trac.torproject.org/images/favicon.ico: 0x80070057
 Torbutton INFO: Component returned failure code: 0x80070057
 (NS_ERROR_ILLEGAL_VALUE) [mozIThirdPartyUtil.getFirstPartyURIFromChannel]
 Torbutton INFO: tor SOCKS isolation catchall:
 https://trac.torproject.org/images/favicon.ico via --unknown--:129

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17597#comment:3>
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