On Thu, Sep 7, 2017 at 10:19 AM, Damien Clark <damo.clarky@xxxxxxxxx> wrote: > >> On 7 Sep 2017, at 11:53 pm, Eric Covener <covener@xxxxxxxxx> wrote: >> >>> >>> I am wondering whether the use of a rewriterule with the “P” flag is the reason the upgrade header hasn’t been included. I wonder this because it is pretty widely reported to work fine when using ProxyPass to ws uri. Since you have 2.4.27, can you try (untested -- please log %{no-proxy}e to make sure nothing subtle is wrong) # Don't allow ProxyPass to find these SetEnvIf Upgrade (?i)websocket no-proxy=1 RewriteRule ... [P,E=no-proxy:1] is too late unfortunately. no-proxy should not block RewriteBased [P] flag, only the ProxyPass. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx