Ionic UWP build ajax calls can't access the internet (outside of localhost)

Ionic Framework ionic-v3
#1

Hi I have an application that connects to a backend REST service via https. This works fine in ionic serve, and also when deployed and running on iOS and Android.

I have finally, after a very long battle, got a UWP build to install on my local desktop dev machine (Windows 10). I’ve double clicked the .appx file to install, and then app successfully installs and displays

Capabilities:

  • Access your Internet connection

When I run a test http command it has, it can connect to localhost, but not to a remote server using https (and a published DNS names that works everywhere else).

Does anyone have any ideas here on how to diagnose this?

Thanks in advance for any help.

#3

Is there something like devtools for Windows with Edge maybe? That’s what I woul use for iOS or Android to see if there are any errors being logged…

#4

I built it in debug, and I could run it in Visual studio and put a break point in the error handler for the http.get

As we can see below, not much to see (status 0 and no status text)

watch

#5

For Chrome and Safari we get useful output on the console.
HTTP status 0 mostly means the request was blocked because of security reasons.
But I don’t know any details about debugging UWPs.

#6

Yes that’s what I am thinking. UWP doco is by far the most sparse

#7

I don’t think this is specific to Ionic, I can’t get any UWP Cordova app ajax call to work. Broader issue logged here. and here.

#8

(issues.cordova.io might be another semi valid place to create an issue…)

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#9

That is something I haven’t tried. I have logged an issue here.

Also currently trying to get some Microsoft development support, paid or otherwise.

Fingers crossed!

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#10

Wow, after all that, testing a sample app in a different device, and using my cell network rather than the office WIFI, I could finally get an outside connection.

#11

Damn, really? Is it a Firewall or network problem then?

#12

Yes. I can’t believe I didn’t suspect and try on another. Just seemed weird that only seems to block the app (even the call on a browser worked).

Huge lesson learnt.

1 Like