Capture traffic from QtWebEngine with Fiddler?

4 posts, 0 answers
  1. Quoc
    Quoc avatar
    6 posts
    Member since:
    Feb 2018

    Posted 24 Jul Link to this post

    I'm using chinese software which is using QtWebEngine but Fiddler is unable to capture anything from it even i selected process to that only. Nothing shows up. HTTPS and certificate enabled and are working perfectly with browsers and other softwares

    QtWebEngine is based on chromium and is open source https://wiki.qt.io/QtWebEngine. Fiddler is supossed to capture anything http/s related

    The process running is qtwebengineprocess.exe

    Anyone know anything about it?

  2. Eric R | Technical Support Engineer
    Admin
    Eric R | Technical Support Engineer avatar
    228 posts

    Posted 26 Jul Link to this post

    Hi Dwight,

    I am not aware of anything in particular. If I understand correctly, the software runs the QtWebEngine which is a stripped down version of Chromium? If this is the case, there could be something happening between the software and the web engine.

    Could you provide more details about how Fiddler is being used in this scenario? Thank you and I look for ward to your reply.

    Regards,

    Eric R
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  3. Quoc
    Quoc avatar
    6 posts
    Member since:
    Feb 2018

    Posted 28 Jul in reply to Eric R | Technical Support Engineer Link to this post

    Well I just try to see wether it collects sensitive data or not.

    If QtWebEngine runs Chromium then fiddler should be able to capture anything from it.

    But nothing captured, nor got any certificate errors. I think there is a protection or something that prevent fiddler from capturing

  4. Eric R | Technical Support Engineer
    Admin
    Eric R | Technical Support Engineer avatar
    228 posts

    Posted 29 Jul Link to this post

    Hi Quoc,

    I agree that I think there may be something blocking Fiddler from capturing any traffic. This could be something proprietary that was built into the application or the web traffic is using HTTPS

    Although, in order to understand this I would need the following information. 

    1. - The software being used to inspect it's traffic
    2. -  The Session Archive Zip (SAZ) file and the Fiddler Log Output.

    Once I receive the above information I will be able to investigate more.

    Please let me know if you need any additional information. Thank you and I look forward to your reply.

    Regards,

    Eric R
    Progress Telerik
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