Cannot connect to proxy server

7 posts, 1 answers
  1. Kerry
    Kerry avatar
    4 posts
    Member since:
    Dec 2018

    Posted 13 Dec 2018 Link to this post

    Hello, 

    I am attempting to capture traffic to troubleshoot an ongoing issue, however I cannot get FiddlerCap to work with the Edge browser.  When I start a capture I get the message "Can't connect to proxy server."  This only happens while Fiddler is running.  If I stop the capture, I have no issues getting to the internet.  I'll attach some files to show my settings.  Thank you so much for your guidance!

    -Kerry

  2. Kerry
    Kerry avatar
    4 posts
    Member since:
    Dec 2018

    Posted 13 Dec 2018 Link to this post

    Also, let me know if there is any other information I can provide to help troubleshoot this.

    -Kerry

  3. Simeon
    Admin
    Simeon avatar
    195 posts

    Posted 19 Dec 2018 Link to this post

    Hi Kerry,

    The Edge browser is running in an AppContainer Isolation. Please, use the AppContainer Loopback Exemption Utility of Fiddler to allow the Edge browser to contact your localhost address.

    Regards,
    Simeon
    Progress Telerik
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  4. Kerry
    Kerry avatar
    4 posts
    Member since:
    Dec 2018

    Posted 19 Dec 2018 Link to this post

    Hi Simeon, 

    Thank you for responding!  Will this same procedure work for WIndows 10?  That is the OS that I'm using Fiddler with.  Also, I have a free version of FiddlerCap.  I don't see the same options listed in the URL above. I'll attach an image of what I can see.  Is there another way to accomplish a loopback exemption?  

  5. Answer
    Simeon
    Admin
    Simeon avatar
    195 posts

    Posted 19 Dec 2018 Link to this post

    Hello Kerry,

    Will this same procedure work for 10? Yes, it works for Windows 10, as well.

    If for some reason you do not want to install the Fiddler app, which comes with the AppContainer Loopback Exemption Utility, you can install only the utility from here.

    Regards,
    Simeon
    Progress Telerik
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  6. Kerry
    Kerry avatar
    4 posts
    Member since:
    Dec 2018

    Posted 19 Dec 2018 Link to this post

    Hi Simeon, 

    I have to apologize.  I was using FiddlerCap instead of Fiddler 4.  I've corrected that, made an exemption for MS Edge, and was able to get the capture I was trying to get.  I appreciate all of your help!

     

     

  7. Simeon
    Admin
    Simeon avatar
    195 posts

    Posted 20 Dec 2018 Link to this post

    Thank you, Kerry! I am happy for your success :)

    Regards,
    Simeon
    Progress Telerik
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