Random errors when using AdGuard as proxy

[jamesx]

Due to the MySQL issue i switched Adguard to act as a proxy (http://forum.adguard.com/showthread.php?4450-Adguard-causing-MySQL-connections-to-fail)

Now I randomly encounter proxy errors claiming that the website is not available. A reload of the website (F5) fixes this issue all the time.

It is not really reproducible, if a page that errored out previously is requested a second time it usually works.

I noticed it a couple of times while clicking through a slide show like:
http://www.heise.de/autos/artikel/Reportage-24-Stunden-von-Le-Mans-2015-2557289.html?view=bildergalerie

Version: 5.10.1190.6188

Browser: Opera/28.0.1750.31 (Edition beta) based on Chrome/41.0.2272.53

Screenshot:



Stacktrace:

System.Net.ProtocolViolationException: Line cannot be empty
Source: Adguard.HttpStack 
trace:    
at Adguard.Http.Protocol.HttpBaseStatusLine..ctor(Byte[] lineBytes)   
at Adguard.Http.Protocol.HttpResponse.ParseStatusLine(Byte[] statusLine)   
at Adguard.Http.Protocol.HttpBase.ParseStatusLine(Stream stream)   
at Adguard.Http.Protocol.HttpBase..ctor(Stream stream)   
at Adguard.Proxy.Http.HttpProxyServer.GetHttpResponse(HttpProxyConnectionContext context, Stream remoteStream)   
at Adguard.Proxy.Http.HttpProxyServer.ProcessHttpRequest(HttpRequest request, HttpProxyConnectionContext context)   
at Adguard.Proxy.Http.HttpProxyServer.ProcessConnection(TcpConnectionContext context)

 

[avatar]

How often do you see such errors?

 

[jamesx]

Completely unpredictable, sometimes there is no issue for 100 page loads, other times i get 2 of those errors in 5 page loads.

 

[vasily_bagirov]

Completely unpredictable, sometimes there is no issue for 100 page loads, other times i get 2 of those errors in 5 page loads.

We have found where the problem was lurking, will fix in the nearest beta update.

UPD: A new beta was released (v.5.10.1199.6229), this problem is fixed there. You can downlaod it using this link: http://download.adguard.com/d/2/adguardInstallerBeta.exe

 

[jamesx]

The beta installer gave me version 5.10.2002.6237, so i'll try to provide feedback if I keep encountering this issue.

 

[vasily_bagirov]

The beta installer gave me version 5.10.2002.6237, so i'll try to provide feedback if I keep encountering this issue.

Yes, it's a static link to a latest beta at any given moment. We had several of beta updates in the last couple days.

 

[jamesx]

So it is looking pretty good, I didn't encounter the error once since the new version.

Any idea in which stable version this fix will be available?

 

[avatar]

So it is looking pretty good, I didn't encounter the error once since the new version.

Any idea in which stable version this fix will be available?

It was released yesterday:
https://blog.adguard.com/en/news/adguard-for-windows-update-version-5-10-2004.html

We've also released a new beta, now with mysql bug fixed. I'm not sure the bug is really fixed because we can't reproduce it, but i hope it is

 

[jamesx]

Looking pretty good, I did not encounter the proxy error anymore since the new version.

Best regards.