[SM-STABLE] lowsrc attribute

[Jedi/Sector O. <j...@pu...>]

  Hello.
  
  When HTML rendering is enabled, and a mail with HTML is received,
Squirrelmail intentionnaly changes links to external references for obvious
security reasons.

  However, it looks like the "lowsrc" attribute of the "img" tag isn't
mangled.

  When a mail with
  
  <img lowsrc="http://www.example.com/" src="xxx" />
  
  is received, the link is immediately followed by Netscape 4.x (maybe other
browsers do as well) .

  Tested with Squirrelmail 1.2.11 (the current Gentoo Linux package) .
  
  Is there a quick fix for this or has it been fixed in 1.4 ?
  
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