How to Solve 'redirect Has Been Blocked by CORS Policy?

CORS stands for cross-origin resource sharing, which is used in modern web environments to make requests from one domain (your site) to another domain (the remote server) using the same origin policy. This can be achieved using HTTP headers or a special URL that allows developers to specify whether the request should be allowed with CORS headers enabled or disabled.

ccess to XMLHttpRequest at 'http://127.0.0.1:5000/ has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Concerned Cheetah on May 12, 2020

@app.route('your route', methods=['GET'])
def yourMethod(params):
    response = flask.jsonify({'some': 'data'})
    response.headers.add('Access-Control-Allow-Origin', '*')
    return response

Source: stackoverflow.com

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This can cause websites and pages to not work as expected or be blocked entirely if they allow users to access them with the wrong redirect policy.

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How to Solve 'redirect Has Been Blocked by CORS Policy?

ccess to XMLHttpRequest at 'http://127.0.0.1:5000/ has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

Whatever answers related to "ccess to XMLHttpRequest at 'http://127.0.0.1:5000/ has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."

Whatever queries related to "ccess to XMLHttpRequest at 'http://127.0.0.1:5000/ has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."

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