No 'Access-Control-Allow-Origin' header is present on the requested resource

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  • Last Post 24 April 2020
Simnico posted this 23 April 2020

OS Name/Version: Windows Server 2019

Product Name/Version: McMyAdmin 3 / w AMP 1.9.2.1

Problem Description:
Trying to access the web pannel from my website using Cross-origin resource sharing.

Gives out error:
No 'Access-Control-Allow-Origin' header is present on the requested resource

Steps to reproduce:

1- Open another website
2- Enter this javascript code:

    $(document).ready(function () {

        $('#siteloader').load("https://www.DOMAIN01.ca:8080/");

    });

3- Look at the console it gives you this error:
McMyAdmin:1 Access to XMLHttpRequest at 'https://www.DOMAIN01.com:8080/' from origin 'https://www.DOMAIN01.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Actions taken to resolve so far:
Tried to find the config for the web server of McMyAdmin didn't find any.

Mike posted this 24 April 2020

This would be a massive security hazard. You need a backend server-side application to do what you're after safely.

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