We have a site that's getting HTTP 502 errors (PH-- in the logs), and "no option checkcache" did not help. Not quite sure how to find out exactly what is making HAProxy give the HTTP 502 / PH-- response, even using the debug option didn't really give any better insight.
Off the top of your heads does anyone know if a cookie value that contains equal signs is illegal? This site is trying to save an encrypted string in a cookie like Username=asdkjflasdjflkadsjflasdfj==; and my best guess so far is the extra =='s at the end of the cookie value are not HTTP compliant. Not having much luck finding a definitive list of what characters are legal in cookie values though. I see several other cookies flying around with # or | in them but they don't cause this PH-- issue, its only when the one with the =='s shows up that it happens. Thanks
