CORS and ionic emulate/run expert knowledge required

Ionic Framework ionic-v3
1

Hey all,

I am looking for some expert knowledge & advice on where CORS will and won’t be a problem. My understanding is that when using run, emulate and build Ionic should be serving from file:// so CORS isn’t a problem.

In practice, both $ ionic run and $ ionic emulate are still giving me CORS issues. When debugging using Safari, I can see that it’s serving from an IP address (and can also see the CORS error).

I have tried using ionic proxy, however I need to send headers through for authentication and ionic proxy seems to be quite limited in that area.

Thanks!

2

Make sure you have the whitelist plugin installed, and then add this to your index.html:

<meta http-equiv="Content-Security-Policy" content="font-src 'self' data:; img-src * data:; default-src * 'unsafe-eval' 'unsafe-inline'">

This defines a very permissive content security policy, which should hopefully solve any CORS issues.