Protocol Violation Report

[Niki]

Hi Eric,

Whenever i run fiddler after a while i notice another window with all the protocol violating sessions. What exactly those sessions mean? Even when i am browsing smoothly through my browser without and error , i see lots of such sessions in protocol violating window.

Most of them mention, some error is cookie or etag.

What are extended and extended checking option available?

Best,

Niki

[EricLaw]

Niki-- I wrote a bit about Protocol Violation reporting here: http://fiddler2.com/blog/blog/2012/11/07/new-in-fiddler-2.4.2

 

The Basic Checks list instances where a server or client is violating the HTTP protocol in some way. Such violations are often harmless and occur unnoticed, but they may cause clients or servers to fail if they strictly adhere to standards. Or, the violation may reflect a bug or unexpected codepath in the client or server that should be fixed.

 

The Extended Checks list instances where the client or server is doing something which might cause a problem for a client. For instance, Fiddler's extended checks will warn you if you try to use Set-Cookie to set a cookie containing an unescaped comma. Most browsers don't mind such cookies, but clients which strictly adhere to the specification for cookies (e.g. the .NET CookieCollection class) will reject such cookies.

 

[michael Bostwick]

Could this cause a proxy to refuse to allow google groups to connect?

[EricLaw]

Sorry, Michael, I don't know what you're asking. Please explain fully the problem you're having, and what message(s) you see.