[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.
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 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 nacin):

 Replying to [comment:17 westi]:
 > For 3.6 wp_header looks nice - might be good to see if we can avoid
 using @ suppression there by checking headers_sent().

 If there is a speed component, I could go for it. However I think I like @
 over headers_sent(), because then if you have the error suppression
 operator disabled ("scream" mode), possibly valid warnings present
 themselves, while headers_sent() would prevent any warning.

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Ticket URL: <http://core.trac.wordpress.org/ticket/23021#comment:19>
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