LESS CSS Client-Side usage on Azure

We just switched our WordPress-Site on an Azure Server.

For the development of our theme we use LESS CSS with the Client-Side JS file.

Since we switched, it says that the less file does not exist on our server - but it does. We have a .css file in the same folder and Azure can find the .css file.

This is the console output:

GET http://ift.tt/1DpvCGs 404 (Not Found)b.exports.g.doXHR @ less.js:13b.exports.g.loadFile @ less.js:13j @ less.js:13k @ less.js:13b.exports.n.refresh @ less.js:13b.exports.n.refresh @ less.js:132../add-default-options @ less.js:13e @ less.js:13a @ less.js:13(anonymous function) @ less.js:13i @ less.js:13(anonymous function) @ less.js:13 less.js:13

Uncaught (in promise) Object {type: "File", message: "'http://ift.tt/1DpvCGs' wasn't found (404)", href: "http://ift.tt/1DpvCGs"}

What can we do about this?

via Chebli Mohamed