cors

来源： https://stackoverflow.com/questions/60010919/get-blob-google-photos-api-media-items

来源： https://stackoverflow.com/questions/58616598/cors-blocking-requests-in-kotlin-lambda-but-not-in-identically-setup-node-lambda

来源： https://stackoverflow.com/questions/58616598/cors-blocking-requests-in-kotlin-lambda-but-not-in-identically-setup-node-lambda

问题 I'm using Django as a backend, and have run into cross origin issues which I had fixed using the corsheaders package in settings. So far, all my GET endpoints work, thanks to: CORS_ORIGIN_ALLOW_ALL = True However, I'm now trying to access a static file on the django backend, located as such: http://localhost:8000/static/image.jpg The browser client however gets the familiar error as before: Access to XMLHttpRequest at ... from origin ... has been blocked by CORS policy: No 'Access-Control

问题 I'm using Django as a backend, and have run into cross origin issues which I had fixed using the corsheaders package in settings. So far, all my GET endpoints work, thanks to: CORS_ORIGIN_ALLOW_ALL = True However, I'm now trying to access a static file on the django backend, located as such: http://localhost:8000/static/image.jpg The browser client however gets the familiar error as before: Access to XMLHttpRequest at ... from origin ... has been blocked by CORS policy: No 'Access-Control

问题 I'm using Django as a backend, and have run into cross origin issues which I had fixed using the corsheaders package in settings. So far, all my GET endpoints work, thanks to: CORS_ORIGIN_ALLOW_ALL = True However, I'm now trying to access a static file on the django backend, located as such: http://localhost:8000/static/image.jpg The browser client however gets the familiar error as before: Access to XMLHttpRequest at ... from origin ... has been blocked by CORS policy: No 'Access-Control

问题 From what I've read about CORS, I understand it should work as follows: Script on a client side tries to fetch a resource from a server with different origin . Browser intercepts this request and first makes preflight OPTIONS request to the same URL. If response to this preflight request contains appropriate headers (e.g. Access-Control-Allow-Origin: * ), browser understands it's allowed to send main request and does it. Response is returned to the client script. I've set up a test for it

问题 Our development team is trying to upload the files into S3 with .net and facing The S3 bucket is configured with the CORS policy as follows: <?xml version="1.0" encoding="UTF-8"?> <CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> <CORSRule> <AllowedOrigin>http://localhost:3000</AllowedOrigin> <AllowedMethod>GET</AllowedMethod> <AllowedMethod>HEAD</AllowedMethod> <AllowedMethod>PUT</AllowedMethod> <AllowedMethod>POST</AllowedMethod> <AllowedMethod>DELETE</AllowedMethod>

问题 Our development team is trying to upload the files into S3 with .net and facing The S3 bucket is configured with the CORS policy as follows: <?xml version="1.0" encoding="UTF-8"?> <CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"> <CORSRule> <AllowedOrigin>http://localhost:3000</AllowedOrigin> <AllowedMethod>GET</AllowedMethod> <AllowedMethod>HEAD</AllowedMethod> <AllowedMethod>PUT</AllowedMethod> <AllowedMethod>POST</AllowedMethod> <AllowedMethod>DELETE</AllowedMethod>

问题 So I am using Laravel 5.8 as an API to a ReactJS view. I already created a 'cors' middleware, i registered it on Kernel.php file, and I am using it on the api-routes that I am using. I tested using a GET Request and it worked, but when I test with a POST Request, I get the cors error: Access to fetch at 'http://localhost:8000/api/posts' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow