Help needed: Win8.1 on tablet with metro app

7 posts, 0 answers
  1. Lynn
    Lynn avatar
    4 posts
    Member since:
    Jun 2015

    Posted 24 Jun 2015 Link to this post

    I don't know if I am just Kryptonite for proxies, or what, but I cannot get Fiddler to work for my needs. I have an HP Stream 7 tablet running Win 8.1 phone. 

    I need to get fiddler to capture traffic for a metro app I am testing, but the app is in perpetual load while running Fiddler. 
    I can run IE 11 just fine and Fiddler is capturing IE traffic. 
    I went into Win8 config on Fiddler and exempt everything from loopback as the fiddler set up said to do. 
    Fiddler is set to decrypt HTTPS traffic and I installed the trust certificate.

    Am I missing something? I would appreciate some help as soon as possible.

    Thank you,
    Lynn
  2. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 24 Jun 2015 Link to this post

    Hello, Lynn--

    I'm not sure what "Win 8.1 phone" is. Is Fiddler running directly on your tablet, or on another PC?

    When you are testing your metro app, are you doing so from Visual Studio or are you running it directly? When you are running it from Visual Studio, it should automatically get an AppContainer Loopback exemption; when you are running it standalone, you need to manually use the Win8 config tool.

    If you are using Visual Studio, what is the callstack if you break while it the app is in "perpetual load"?

    When you installed Fiddler's Trusted Root certificate, did you accept the prompt to trust the certificate "Machine-wide" and not just inside your user-account? Using the Machine store is necessary to debug Metro apps.

    What is the URL that your app is trying to access? Do you see *anything* coming from the app in Fiddler? If you use other Metro apps (e.g. the News app, etc), can you successfully see their traffic inside Fiddler?


    Regards,
    Eric Lawrence
    Telerik
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
  3. Lynn
    Lynn avatar
    4 posts
    Member since:
    Jun 2015

    Posted 24 Jun 2015 in reply to Eric Lawrence Link to this post

    The OS operating on the tablet is Windows 8.1

    Fiddler and app are running directly on the tablet - no other pc is involved

    I am not using Visual Studio - I did use the Win8 config tool

    I believe I accepted the certificate Machine-Wide (when I check the certificates in IE, the windows options are checked)

    I cannot share anything about the app itself

    I do not see anything coming from the app to fiddler

    I tried opening the news metro app and I do get some messages in fiddler, but it is still in a perpetual load

    I have had so many problems with Fiddler and connection speed in the past on my Android phone as well.  

     

  4. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 24 Jun 2015 Link to this post

    Let's step back a bit. Earlier you said you were "testing" an app. Is this an app you wrote, or someone else's app?

    When you say "it is still in a perpetual load" are you now saying that the News app does not open with Fiddler running? If so, what specifically do you see in Fiddler from the News app? Can you share a .SAZ file?

    I'd be happy to help with whatever problem you had on your Android phone, if you could provide details about that.

    Regards,
    Eric Lawrence
    Telerik
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
  5. Lynn
    Lynn avatar
    4 posts
    Member since:
    Jun 2015

    Posted 24 Jun 2015 in reply to Eric Lawrence Link to this post

    The app I'm testing is for someone else.  What I mean by perpetual load is that when I open the apps I see the loading screen for the app (so the logo on a colored field in the background) with the loading indicator below the logo in the center of the screen.  The app does not open beyond this point.  I am trying to attach the .saz but it exceeds the max attachment size.  It is 2.8MB.

     

    As for my Android phone (v4.1.2) loading webpages takes a huge amount (5-10 minutes) of time resulting in quite a few time outs.  I am most concerned with my current issue on the windows tablet though.

  6. Lynn
    Lynn avatar
    4 posts
    Member since:
    Jun 2015

    Posted 24 Jun 2015 Link to this post

    I have shared the .saz and the screenshot of the loading page on my dropbox.  The links below will give you access to those files

    https://www.dropbox.com/s/zmyj3wvjlpvmsno/metro%20app%20problem.saz?dl=0

    https://www.dropbox.com/s/lybwad3pmiaog6j/Screenshot.png?dl=0

  7. Eric Lawrence
    Admin
    Eric Lawrence avatar
    833 posts

    Posted 25 Jun 2015 Link to this post

    Hello, Lynn--

    The capture file you've provided doesn't show any errors; it shows the Bing News app reaching out to the web service and downloading content. It's accepting the Fiddler root certificate as valid, so this shouldn't be a certificate trust issue.

    Unfortunately, without getting a proper debugger (VS, etc) on the machine in question I don't know how you'd debug this further.

    Regards,
    Eric Lawrence
    Telerik
    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
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