Ionic - XMLHttpRequest cannot load

Question

I have an Ionic PWA, so it runs in browser. I'm trying to send requests to my symfony backend. At first I had everything installed on my local pc and the requests were working with an ionic proxy. Now I have installed both applications on a server. At first I have tried to use the url from the backend without proxy. Then there was a CORS error. Then I wrote a .htaccess file for the backend with the following input:

Header add Access-Control-Allow-Origin "\*"
Header add Access-Control-Allow-Methods: "GET,POST,OPTIONS,DELETE,PUT"

Now I'm getting this:

XMLHttpRequest cannot load ... Response for preflight has invalid HTTP status code 405

If I set a proxy as before on the local installation like this:

"proxies": [
    {
      "path": "/api",
      "proxyUrl": "http://api.example.com/api"
    }
  ]

I'm getting a 404 not found error, when I try to send a request to http://app.example.com/api

Can someone tell me how it will work correctly when frontend and backend are on a server and the app runs in the browser?

amuramoto · Accepted Answer · 2017-08-24 16:49:53Z

1

If you're getting a 405 back, that's a method not supported error, so it looks like you server isn't configured to handle OPTIONS requests. That's causing the pre-flight CORS request to get rejected.

answered Aug 24, 2017 at 16:49

amuramoto

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2 Comments

Nono Over a year ago

Yes, but I have OPTIONS in my .htaccess, like you see above. Or must I do it on a different way?

amuramoto Over a year ago

You're only adding a response header above. It looks like the problem is your server isn't configured to accept OPTIONS requests. See this other answer: stackoverflow.com/questions/43696369/…

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