Hello all,
I have recently enabled HTTP/2 on our HAProxy server by adding the
following to the bind line:
alpn h2,http/1.1
Everything appears to be working fine, apart from our custom error pages.
Rather than serving the custom page as before, browsers just report an
error. In Chrome its ERR_HTTP2_SERVER_REFUSED_STREAM. In Firefox its a
more generic response about the data being invalid.
Here is the content of /etc/haproxy/errorpages/503.http:
HTTP/1.0 503 Service Unavailable
Cache-Control: no-cache
Connection: close
Content-Type: text/html
<!DOCTYPE html>
<html>
<head>
<title>503 Service Unavailable</title>
</head>
<body>
<h1>Service unavailable</h1>
</body>
</html>
I've searched the archives but not found anyone else with this issue -
apart from someone who didn't have the correct HTTP headers defined at
the top of their error file - but mine look OK. I've tried using
HTTP/1.1 instead of HTTP/1.0 and also removing the Connection: close
header, but nothing makes a difference.
Any clues as to what I'm doing wrong would be much appreciated.
Thanks,
Nick
