<html><body><div style="font-family: Arial; font-size: 10pt; color: #000000"><div>Hi,</div><div><br data-mce-bogus="1"></div><div>We are able to pass and perform a WebSocket connection upgrade to a backend server using Nginx without any issue.</div><div><br data-mce-bogus="1"></div><div>However, we use Squid as a reverse proxy in our a production environment and cannot find any documentation on how to pass and/or perform the connection upgrade in Squid.</div><div><br></div><div>In Nginx this is achieved by setting the HTTP version to 1.1 and setting the 'Upgrade' and 'Connection' headers. The proxy read timeout is also marginally increased to exceed the WebSocket server ping frame interval. </div><div><br></div><div>Is a similar configuration possible with Squid as a reverse proxy?</div><div><br data-mce-bogus="1"></div><div>Regards,</div><div data-marker="__SIG_PRE__"><div class="WordSection1"><p class="MsoNormal"><b><span style="font-size: 10pt; font-family: 'Helvetica','sans-serif'; color: #f68e1e;" data-mce-style="font-size: 10pt; font-family: 'Helvetica','sans-serif'; color: #f68e1e;">Trent Renshaw > IT Manager | Lead Developer</span></b><span style="font-size: 10pt; font-family: 'Helvetica','sans-serif'; color: #f68e1e;" data-mce-style="font-size: 10pt; font-family: 'Helvetica','sans-serif'; color: #f68e1e;"><br> <i>Object Systems Technology</i><br> </span><span style="font-size: 10pt; font-family: 'Helvetica','sans-serif';" data-mce-style="font-size: 10pt; font-family: 'Helvetica','sans-serif';"><br> <span style="color: #717074;" data-mce-style="color: #717074;">p: 02 9043 5665</span><span style="color: #717074;" data-mce-style="color: #717074;"> | <span style="font-weight: bold;" data-mce-style="font-weight: bold;">d: 02 9002 5802</span> | m: 0411 038 749 | skype: trent_renshaw<br> e: <span id="OBJ_PREFIX_DWT84"><span class="object">trent.renshaw@objectst.com.au</span></span> | <span id="OBJ_PREFIX_DWT85"><span class="object"><a href="http://www.objectst.com.au/" target="_blank" data-mce-href="http://www.objectst.com.au/">www.objectst.com.au</a></span></span><br> Level 3, 23 O'Connell Street, Sydney NSW 2000</span></span><span style="font-size: 10pt; font-family: 'Helvetica','sans-serif';" data-mce-style="font-size: 10pt; font-family: 'Helvetica','sans-serif';"><o:p></o:p></span></p></div></div></div></body></html>