[wp-trac] [WordPress Trac] #23021: Last-Modified header always set to 1970... when it is blank. Make browser cannot refresh cache.

[WordPress Trac]

#23021: Last-Modified header always set to 1970... when it is blank. Make browser
cannot refresh cache.
--------------------------+--------------------
 Reporter:  slene         |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  3.5.1
Component:  General       |     Version:  3.5
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |
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Comment (by ryan):

 In [changeset:"23267"]:
 {{{
 #!CommitTicketReference repository="" revision="23267"
 Try not to send Last-Modified, even with an empty value. Some servers
 interpret an empty value as the epoch.

 Props nacin, slene, SergeyBiryukov, andy
 see #23021 for trunk
 }}}

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Ticket URL: <http://core.trac.wordpress.org/ticket/23021#comment:20>
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