Category: Fiddler

AD FS 2.0 and Safari (iOS 9 and iOS 10) sign in issue (authentication cookies size issue)

Recently have been working on the issue when the users on iOS 9 and 10 were not able to complete the authentication from outside of corporate network (via AD FS Proxy). The users were getting the error – “There was a problem accessing the site. Try to browse to the site again. Reference number: XXX”. … Continue reading AD FS 2.0 and Safari (iOS 9 and iOS 10) sign in issue (authentication cookies size issue)

How to replace the host name in captured Fiddler trace

For the previous post had to find out how to replace the host name in the captured Fiddler trace. To do this, open the Fiddler, go to Rules – Customize Rules. The Fiddler ScriptEditor will open. Use following code to create new column named MaskedHostName with new host names. You can put it right after … Continue reading How to replace the host name in captured Fiddler trace

Federated applications (CRM and IIS) ADFS Single Sign-On (SSO) troubleshooting with Fiddler

Recently had very interesting issue to troubleshoot. This (long 😊 ) troubleshooting description for sure will help many to understand the ADFS Single Sign-On (SSO) flow and how to read the Fiddler traces. Environment: ADFS 3.0, CRM 2013, IIS 8.5 running a site. Both the CRM and the IIS site are federated with the ADFS. … Continue reading Federated applications (CRM and IIS) ADFS Single Sign-On (SSO) troubleshooting with Fiddler