has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values '
背景：瀏覽器 經過zuul作代理，反向代理到對應的controller中，發現以前正常工做的接口忽然不能正常工做了，最終經過瀏覽器調試模式發現post 出現了錯誤提示：spa has been blocked by CORS policy: The 'Access-Control-Allow-Origin' header contains multiple values '代理 緣由是服務應用裏面
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- 1. [vue報錯]has been blocked by CORS policy
- 2. has been blocked by CORS policy: Request header field authorization is not allowed by Access-Cont...
- 3. has been blocked by CORS policy: Request header field authorization is not allowed by Access-Control
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- 5. origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present
- 6. debug: 解決 Redirect has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header'
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- 9. has been blocked by CORS policy: NO 'Access-Control-Allow-Origin' header is present on the reauested
- 10. 解決：efi usb device has been blocked by the current security policy