CORS error: No 'Access-Control-Allow-Origin' header is present

Product Support
1

Hi all.



I’m experimenting with mautic on a local server.

I’ve also got a WordPress site on the same server.

I’ve found the js snippet for implimenting tracking, and embedded it in the wp site.



When I load the wp site, the mautic resource is successfully requested.

However, the console returns a CORS error:

Code:
XMLHttpRequest cannot load http://mautic.dev/mtc/event. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://wp3.dev' is therefore not allowed access

I've gone back to the mautic dashboard, and gone to 'configuration' -> 'CORS Settings'.
At first I added the domain 'wp3.dev.' to the textfield 'Valid Domains'.

I then went back to the wp site and reloaded. I still got the error.
So I went back to mautic and togged 'Restrict Domains' off.
Then I went back to the wp site and reloaded.

Alas, the error is still thrown in the browser console.

What should my next step be?
2

Hi all.

I’m experimenting with mautic on a local server.
I’ve also got a WordPress site on the same server.
I’ve found the js snippet for implimenting tracking, and embedded it in the wp site.

When I load the wp site, the mautic resource is successfully requested.
However, the console returns a CORS error:

XMLHttpRequest cannot load http://mautic.dev/mtc/event. Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://wp3.dev' is therefore not allowed access

I’ve gone back to the mautic dashboard, and gone to ‘configuration’ -> ‘CORS Settings’.
At first I added the domain ‘wp3.dev.’ to the textfield ‘Valid Domains’.

I then went back to the wp site and reloaded. I still got the error.
So I went back to mautic and togged ‘Restrict Domains’ off.
Then I went back to the wp site and reloaded.

Alas, the error is still thrown in the browser console.

What should my next step be?

3

Hello, have you solved this issue? If yes, how?

Tks.

4

I removed the trailing / from my domain name and it seems to work.

5

+1 also worked for me.