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    copied!<p>I seem to be facing the same problem: I set header status to 400 in case of an error and return JSON array to describe the actual error.</p> <p>When I do:</p> <pre><code>print $main::cgi-&gt;header(@ret), $html; </code></pre> <p>With variables:</p> <pre><code>@ret: {'-type' =&gt; 'application/json','-charset' =&gt; 'utf-8','-status' =&gt; '400 Bad Request'} $html: '{"errors":{"short_name":["Missing!"]}}' </code></pre> <p>I will end up with this:</p> <pre><code>Status Code: 200 OK Content-Type: application/json; charset=utf-8 Response: {"errors":{"short_name":["Missing!"]}&lt;!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"&gt; &lt;html&gt;&lt;head&gt; &lt;title&gt;400 Bad Request&lt;/title&gt; &lt;/head&gt;&lt;body&gt; &lt;h1&gt;Bad Request&lt;/h1&gt; &lt;p&gt;Your browser sent a request that this server could not understand.&lt;br /&gt; &lt;/p&gt; &lt;hr&gt; &lt;address&gt;Apache/2.2.3 (CentOS) Server at localhost Port 80&lt;/address&gt; &lt;/body&gt;&lt;/html&gt; </code></pre> <p>Using the method described by faquer will in deed suppress the error document, but still returns status 200 OK, like Jakub Narębski points out.</p> <hr> <p>BUT! I have found a workaround, where $r is a Apache2::RequestRec, using this: <a href="http://perl.apache.org/docs/2.0/user/coding/coding.html#Forcing_HTTP_Response_Headers_Out" rel="nofollow">http://perl.apache.org/docs/2.0/user/coding/coding.html#Forcing_HTTP_Response_Headers_Out</a> (otherwise you would use $r->send_http_header(), I guess)</p> <pre><code>print $main::cgi-&gt;header(@ret), $html; my $r = $main::cgi-&gt;r; $r-&gt;rflush; # force sending headers (with headers set by CGI) $r-&gt;status(200); # tell Apache that everything was ok, dont send error doc. </code></pre> <p>HTTP response:</p> <pre><code>Status Code: 400 Bad Request Content-Type: application/json; charset=utf-8 Response: {"errors":{"short_name":["Missing!"]}} </code></pre> <hr> <p>Apache config:</p> <pre><code>PerlModule ModPerl::PerlRun PerlModule CGI PerlModule Apache::DBI PerlRequire /var/www/html/startup.pl PerlSendHeader On </code></pre> <p>.htaccess:</p> <pre><code>&lt;Files *.cgi&gt; SetHandler perl-script PerlHandler ModPerl::PerlRun Options ExecCGI &lt;/Files&gt; </code></pre>
 

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