Ionic + Angular POST request return state 404

Question

I just updated on the new version on the Angular + Ionic and method for processing remote request stopped working and returns always 404 response.

Request is

Answer 1

The (from cache) in response status suggests that your browser cached bad reply and is playing it back to you. Try clearing cache or use any cache busting techniques.

Answer 2

I struggled for quite some time with this, but the trick was to install the plugin, configure the CSP in index.html and then remove the plugin an adding it again.

Answer 3

Hum, I just ran into the same problem: the header suggests it has been fetched from cache... But actually, it seems it has to do with a new security policy in new versions of Cordova.

Here's how I solved it:

I installed Cordova's whitelist plugin :

cordova plugin add cordova-plugin-whitelist

Then, add your content policy in your index.html as a meta tag (using your own host or '*' for accepting all requests) :

<meta http-equiv="Content-Security-Policy" content="default-src 'self' yourhost.com ws://localhost:35729 data: gap: https://ssl.gstatic.com; style-src 'self' 'unsafe-inline'; media-src *;script-src 'self' localhost:35729 'unsafe-eval' 'unsafe-inline';">

default-src is used for general requests; the ws://localhost:35729 host is used for live-reload in ionic serve.

script-src is used for secure script execution

unsafe-inline and unsafe-eval are required in order for angular to work properly.

data: gap: https://ssl.gstatic.com is only used on iOS.

self means the current host of the index.html file.

You'll have to add your own in order for your requests to work. Don't forget to add the protocol and the port if they're non-standard

You can skip the meta tag if you don't want it, but you'll get a lot of warnings from the whitelist plugin.

More info on how to configure this in the plugin's readme.

Then rebuild your app, and it should work again.

Answer 4

I also had this problem and searched a lot then finally... i removed the whitelist plugin:

cordova plugin remove cordova-plugin-whitelist

then renstalled it

cordova plugin add cordova-plugin-whitelist

It helped me and hope it solve your problem