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Custom TFS Extension preflight and cors error

I want to develop custom extension in tfs2018 and I want to make a rest call in it.
I did cors configurations in tfs server (

Failed to load:”api url” Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘null’ is therefore not allowed access.

jqXHRFields: {
withCredentials: true }, crossDomain: true, …..

jqXHR.setRequestHeader(“Authorization”, “Basic ” + ***”));

jqXHR.setRequestHeader(“Access-Control-Allow-Origin”, “*”);
jqXHR.setRequestHeader(“Access-Control-Allow-Headers”, “origin,
content-type, accept, accessToken”);

jqXHR.setRequestHeader(“Access-Control-Allow-Credentials”, “true”);
jqXHR.setRequestHeader(“Access-Control-Max-Age”, “600”);

By the way same code work in internet explorer and failed in chrome?What should we add?

Custom TFS Extension preflight and cors error
Custom TFS Extension preflight and cors error

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