Unable to capture the HTTPS traffic by using Fiddler Debug tool

9 posts, 0 answers
  1. William
    William avatar
    7 posts
    Member since:
    May 2014

    Posted 05 Nov 2015 Link to this post

    To Whom It May Concern:
    I am trying to download/install the latest version of Fiddler Web Debugger tool in order to develop the performance test script for load testing.  
    Fiddler is unable to capture the HTTPS traffic from web application, system is displaying "SSL Server probably obsolete.

    See attached with a screenshot/log.zip file for more details.

    Thanks,

    William Truong
  2. Ivaylo
    Admin
    Ivaylo avatar
    750 posts

    Posted 06 Nov 2015 Link to this post

    Hello Willliam,

    I am not able to reproduce the behavior you are describing. Could you please give it a try recording the traffic using FiddlerCap.

    Hope this should work for you.

    Regards,
    Ivaylo
    Telerik 
  3. William
    William avatar
    7 posts
    Member since:
    May 2014

    Posted 06 Nov 2015 Link to this post

    Ivaylo,
    I have installed the Fiddler Cap but it doesn't capture the HTTPS traffic of the web application.
    Could you be advised me?

    Thank you,

    William
  4. Cody
    Admin
    Cody avatar
    3360 posts

    Posted 06 Nov 2015 Link to this post

    Hi William,

    This is usually caused by forgetting to check "Decrypt HTTPS traffic" and accepting the Fiddler root certificates. See attached screen shot.

    Regards,
    Cody
    Telerik 
  5. William
    William avatar
    7 posts
    Member since:
    May 2014

    Posted 06 Nov 2015 Link to this post

    Cody,
    I did it before but no luck. 
    I rolled back to the old version 4.4.9.9 of Fiddler Web Debugger tool without upgrade to the latest version then its working good.

    Thanks,

    William
  6. Cody
    Admin
    Cody avatar
    3360 posts

    Posted 06 Nov 2015 Link to this post

    Hello,

    I'm happy to hear you found a solution. I've passed this information along to our Fiddler developer. Also closing this ticket as resolved.

    Regards,
    Cody
    Telerik 
  7. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 06 Nov 2015 Link to this post

    Howdy, William--

    Please see http://textslashplain.com/2015/10/30/reset-fiddlers-https-certificates/ for details on how to reset your certificates after updating to the latest build of Fiddler.

    Upgrading is important, as the certificates generated by older versions of Fiddler will stop working in upcoming browser versions.

    Regards,
    Eric Lawrence
    Telerik 
  8. William
    William avatar
    7 posts
    Member since:
    May 2014

    Posted 06 Nov 2015 Link to this post

    Eric,
    I have followed the instruction but still unsuccessful.

    Thank you,

    William 
  9. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 06 Nov 2015 Link to this post

    Hello, William--

    Please contact me directly by sending email (Help > Send Feedback) and I'm happy to walk you through the resolution.

    Regards,
    Eric Lawrence
    Telerik
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