{{tag>Pb Apache HTTP Proxy}}

= Pb Apache ProxyPass 502 503 mod_proxy 100-continue

Voir :
* https://stackoverflow.com/questions/3889574/apache-and-mod-proxy-not-handling-http-100-continue-from-client-http-417
* https://evertpot.com/http/100-continue/

<code bash>
curl -m5 -X PUT --write-out "http_code=%{http_code}" --data @submit.xml http://127.0.0.1/CTRL/submit?EBu
curl -m5 -X PUT --write-out "http_code=%{http_code}" --data @submit.xml http://127.0.0.1:8080/I/submit?EBu
</code>


== Solution

=== Solution 1

''RequestHeader unset Expect early''

''/etc/httpd/conf/httpd.conf''
<code apache>
LoadModule headers_module modules/mod_headers.so

<IfModule mod_headers.c>
RequestHeader unset Expect early
</IfModule>
</code>


=== Solution 2

<code apache>
<IfVersion >= 2.4.41>
    Proxy100Continue off
</IfVersion>
</code>