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#4338 closed bug (duplicate)

Opened March 12, 2009 10:53AM UTC

Closed March 18, 2009 03:03AM UTC

Wrong browser version in IE with agent software

Reported by: platosha Owned by:
Priority: minor Milestone: 1.4
Component: core Version: 1.3.2
Keywords: Cc:
Blocked by: Blocking:

There's a problem in browser version recognition code. Mail.Ru Agent software adds its version in IE userAgent string like this:

mozilla/4.0 (compatible; msie 7.0; windows nt 5.1; mra 4.9 (build 01863))

Notice the mra word added by agent. It confuses jQuery browser version detection code:

jQuery.browser = {
    version: (userAgent.match( /.+(?:rv|it|ra|ie)[\\/: ]([\\d.]+)/ ) || [0,'0'])[1],

In this case the version detection regular expression erroneously considers that browser version is 4.9.

To avoid this bug I suggest using full engine names insted of two-lettershortenings in browser detection regexp. Example:

jQuery.browser = {
    version: (userAgent.match( /.+(?:rv|webkit|khtml|opera|msie)[\\/: ]([\\d.]+)/ ) || [0,'0'])[1],
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Change History (1)

Changed March 18, 2009 03:03AM UTC by brandon comment:1

resolution: → duplicate
status: newclosed

duplicate of #2661