The 'Access-Control-Allow-Origin' header contains multiple values, but only one is allowed. about laravel-cors HOT 5 CLOSED

You probably have header("Access-Control-Allow-Origin: *"); somewhere, or something similar in your .htaccess file?

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Access to XMLHttpRequest at 'https://web123.com/Ajith/login2.php' from origin 'http://localhost:8100' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: The 'Access-Control-Allow-Origin' header contains multiple values '*, *', but only one is allowed.

how solve this error.....pls

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I found that my nginx config in my docker container had add_header lines in it. Removing these fixed my problem.

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It turned out i was using dev-master version of laravel-cors, beacause there is no 0.7.x as readme says. I installed 0.6.x, added provider in app, middleware and route middleware in kernel, and now it works like a chram.
But going back to this issue, I removed all acces-control-allow-origin in my project and left only those in default config, but problem still occured.

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You probably have header("Access-Control-Allow-Origin: *"); somewhere, or something similar in your .htaccess file?

What if i don't have access to the server

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