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How to solve this problem in odoo 13
Access to XMLHttpRequest at https://google.com from origin 127.0.0.1:8069 has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.
set proxy_mode = True in the odoo.conf file.
with this setting i solve my problem.
This error is probably related to Chrome Browser !!!
Try to use Firefox, just to see if you get the same error (or any other browser).
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I still waiting
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