[wp-trac] [WordPress Trac] #18043: Uploaded images dissapear after loading if using compression w/Apache

WordPress Trac wp-trac at lists.automattic.com
Mon Jul 25 22:52:34 UTC 2011

#18043: Uploaded images dissapear after loading if using compression w/Apache
 Reporter:  ctsttom       |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Multisite     |     Version:  3.2.1
 Severity:  major         |  Resolution:
 Keywords:  needs-patch   |

Comment (by SergeyBiryukov):

 Looks like we have at least two cases where Content-Length is needed
 ([http://mu.trac.wordpress.org/ticket/473 mu:#473], #17181) and other two
 when it's not needed ([http://mu.trac.wordpress.org/ticket/1078 mu:#1078],
 #18043), for both Apache and IIS.

 The first two seem strange though. According to RFC 2616, Content-Length
 should not be sent together with Transfer-Encoding:

  If a Content-Length header field (section 14.13) is present, its decimal
 value in OCTETs represents both the entity-length and the transfer-length.
 The Content-Length header field MUST NOT be sent if these two lengths are
 different (i.e., if a Transfer-Encoding header field is present). If a
 message is received with both a Transfer-Encoding header field and a
 Content-Length header field, the latter MUST be ignored.

 I wonder if the issues in the first two tickets could be caused by a
 server misconfiguration.

Ticket URL: <http://core.trac.wordpress.org/ticket/18043#comment:9>
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