Does your Chrome console have some additional hints? Thanks
Michael Am Fr., 14. Mai 2021 um 14:44 Uhr schrieb Andreas Habel < aha...@uni-bremen.de>: > Hello, > > since Chrome and Chrome-based browsers recently were updated to Chrome > 90 I am experiencing a 502 proxy error when I try to access my web > servers with these browsers. > Before the update to Chrome 90 things worked fine, and everything still > works with Firefox. > > Here's my setup: > > --> webserver1 > > Internet --> router/firewall --> web server with reverse proxy --> > webserver2 > > --> webserver3 > > > When accessing any of the web servers that are behind the reverse proxy > I get the following in the error.log of the web server that is > configured as reverse proxy: > [Fri May 14 11:50:20.555724 2021] [proxy_http:error] [pid 1466:tid > 140450128164608] (20014)Internal error (specific information not > available): [client 192.168.0.1:42450] AH01102: error reading status > line from remote server 192.168.0.102:80 > [Fri May 14 11:50:20.555768 2021] [proxy:error] [pid 1466:tid > 140450128164608] [client 192.168.0.1:42450] AH00898: Error reading from > remote server returned by / > [Fri May 14 11:50:20.563497 2021] [reqtimeout:info] [pid 1467:tid > 140450442671872] [client 192.168.0.1:42452] AH01382: Request header read > timeout > > other_vhosts_access.log on web server with reverse proxy: > webserver1.com:443 192.168.0.1 - - [14/May/2021:11:50:00 +0200] "GET / > HTTP/1.1" 502 4344 "-" "Mozilla/5.0 (X11; Linux x86_64) > AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 > OPR/76.0.4017.123" > webserver2.com:443 192.168.0.1 - - [14/May/2021:11:50:20 +0200] "-" 408 > 3681 "-" "-" > webserver1.com:443 192.168.0.1 - - [14/May/2021:11:50:20 +0200] "GET > /favicon.ico HTTP/1.1" 200 24 "https://webserver1.com/"; "Mozilla/5.0 > (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) > Chrome/90.0.4430.93 Safari/537.36 OPR/76.0.4017.123" > > access.log on webserver1: > 192.168.3.11 - - [14/May/2021:11:50:20 +0200] "-" 408 0 "-" "-" > > 192.168.0.1 = router/firewall > 192.168.3.11 = web server with reverse proxy in DMZ > 192.168.0.102 = wevserver1 > > Here is the webserver1.conf in sites-enabled: > > <IfModule mod_ssl.c> > <VirtualHost *:443> > ServerName webserver1.com > SSLEngine On > SSLProxyEngine On > ProxyPreserveHost On > <Proxy *> > Order deny,allow > Allow from all > </Proxy> > ProxyRequests Off > ProxyPreserveHost On > ProxyPass /zm/ http://192.168.0.102/zm/ > ProxyPassReverse /zm/ http://192.168.0.102/zm/ > ProxyPass / http://192.168.0.102/zm/ > ProxyPassReverse / http://192.168.0.102/zm/ > > DocumentRoot /var/www/html > ProxyPass /.well-known ! > > Include /etc/letsencrypt/options-ssl-apache.conf > SSLCertificateFile /etc/letsencrypt/live/webserver1.com/fullchain.pem > SSLCertificateKeyFile /etc/letsencrypt/live/webserver1.com/privkey.pem > </VirtualHost> > </IfModule> > > Apache version on the web server with reverse proxy and on webserver1 > is: Apache/2.4.29 (Ubuntu) on Ubuntu 18.04.5 > > I wonder if there is anything wrong in my config? Any help is highly > appreciated. > > Best regards, > > Andreas > >
