[wp-trac] [WordPress Trac] #34053: HTTP API (Curl backend) inappropriately sends Content-Length header on POST requests made through a proxy server CONNECT

[WordPress Trac]

#34053: HTTP API (Curl backend) inappropriately sends Content-Length header on POST
requests made through a proxy server CONNECT
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 Reporter:  petertvs      |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  HTTP API      |     Version:  4.3.1
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  administration
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Comment (by Veraxus):

 Just started running into this as well. The proxy servers outright reject
 the request because the Content-Length header triggers a malformed
 warning. Currently, we're using a tiny mu-plugin fix similar to @awbauer's
 comment and are exploring the logistics of contributing a patch.

 This really should be fixed since Content-Length is definitively non-
 standard.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34053#comment:4>
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