[tor-bugs] #12847 [HTTPS Everywhere: Chrome]: cdn rules for bigcommerce.com

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#12847: cdn rules for bigcommerce.com
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 Reporter:  cypherpunks               |          Owner:  zyan
     Type:  defect                    |         Status:  new
 Priority:  normal                    |      Milestone:
Component:  HTTPS Everywhere: Chrome  |        Version:  HTTPS-E 4.0dev14
 Keywords:  https everywhere rules    |  Actual Points:
Parent ID:                            |         Points:
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 bigcommerce CDN names extend past cdn[12] and include:

   cdn.bigcommerce.com
   cdn1.bigcommerce.com
   cdn2.bigcommerce.com
   cdn3.bigcommerce.com
   cdn4.bigcommerce.com

 and more.  A more appropriate match would be:

 ^cdn\d*\.bigcommerce\.com$

 Leaking of bigcommerce.com CDN URLs can result very detailed tracking of
 items people are looking to buy, purchases etc for any stores run by them.
 This seems to be the case even for stores that use bigcommerce.com but
 that use their own domain name.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12847>
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