[tor-bugs] #5893 [EFF-HTTPS Everywhere]: Breakage in Firefox 15 nightlies due to E4X deprecation (was: UI breakage in Firefox 15 nightlies)

[Tor Bug Tracker & Wiki]

#5893: Breakage in Firefox 15 nightlies due to E4X deprecation
----------------------------------+-----------------------------------------
 Reporter:  pde                   |          Owner:  pde
     Type:  defect                |         Status:  new
 Priority:  critical              |      Milestone:     
Component:  EFF-HTTPS Everywhere  |        Version:     
 Keywords:                        |         Parent:     
   Points:                        |   Actualpoints:     
----------------------------------+-----------------------------------------
Changes (by pde):

 * cc: mikeperry (added)


Comment:

 We also get these exceptions on lines 123, 125 and 127 of preferences.js

 Googling this error message implies that it is normally caused by the use
 of "[https://en.wikipedia.org/wiki/ECMAScript_for_XML E4X]".

 It isn't at first obvious how that relates to places that are throwing
 these exceptions.  However we use E4X in the functions
 [https://gitweb.torproject.org/https-
 everywhere.git/blob/dd01180f4d08a313ff9f3db9b25348b45a11ac94:/src/chrome/content/code/HTTPSRules.js#l250
 ParseXmlRulesets] and [https://gitweb.torproject.org/https-
 everywhere.git/blob/dd01180f4d08a313ff9f3db9b25348b45a11ac94:/src/chrome/content/code/HTTPSRules.js#l279
 PraseOneRuleset], and the errors are being raised in places that refer to
 objects built from XML input in those functions.

 So it seems that ParseXmlRulesets and ParseOneRuleset will need to be
 rewritten using some alternative non-E4X means of parsing XML rulesets.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/5893#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online