Websocket with Http11NioProtocol connector failed with error 400 or error 500

Issue

• Getting http 400 error and http 500 error when enabling Http11NioProtocol connector in EAP for Websocket, the httpd configuration is

  ProxyPreserveHost On      
  RewriteEngine On
  RewriteCond %{REQUEST_METHOD} ^(HEAD|GET) [NC]
  RewriteCond %{HTTP:Range} ([0-9]*-[0-9]*)(\s*,\s*[0-9]*-[0-9]*)+ [OR]
  RewriteCond %{HTTP:Request-Range} ([0-9]*-[0-9]*)(\s*,\s*[0-9]*-[0-9]*)+
  RewriteCond %{REQUEST_METHOD} ^OPTIONS
  RewriteRule .* - [F]
  RewriteCond %{HTTP:Connection} ^Upgrade$ [NC]
  RewriteCond %{HTTP:Upgrade} ^WebSocket$ [NC]
  RewriteRule /(.*) ws://10.10.10.10:8080/%{REQUEST_URI} [P]
  
  ProxyPass           /               http://10.10.10.10:8080/  keepalive=On retry=0
  ProxyPassReverse    /               http://10.10.10.10:8080/