What should I do if a CORS error is reported?
The error is as follows:
The reason is that CORS is not correctly set for the bucket. For more information, see Setting CORS. Check whether the action
and allowPrefix
you entered when applying for the temporary key are correct.
1. For example, if you call cos.putObject()
, but the action
does not contain name/cos:PutObject, then there is no putObject
permission, resulting in the error 403.
2. For example, if the key for the operation is 1.jpg
, but the allowPrefix
is entered as test/*
(only allowing operations on the test/*
path), then there is no operation permission for the corresponding path, resulting in the error 403.
If both action
and allowPrefix
are correct, see Generating and Using Temporary Keys and 403 Error for COS Access.
Field description: STS SDKs for different languages use different fields for action
and allowPrefix
, such as allowActions
and allowPrefixes
in the STS Java SDK. Be sure to check the examples in the STS SDK. What should I do if the JavaScript SDK reports the error "Request has expired (Status Code: 403; Error Code: AccessDenied)"?
If the error is caused by the expiration of the signature, simply generate a new signature. If the error persists, check whether the local time of the server is the same as the standard local time.
What should I do if multipart upload through the JavaScript SDK is only successfully the first time, but error 403 is returned in subsequent upload requests?
What should I do if the JavaScript SDK upload speed does not reach the full bandwidth?
You can use the multipart upload API and increase the size of each part. For example, if the current part size is 1 MB, you can try to adjust it to 5 MB and then observe the bandwidth usage. For more information, see Uploading Object. How can I use the JavaScript SDK to obtain the upload progress?
The simple upload API and multipart upload API of the JavaScript SDK can return the upload progress. For more information, see Uploading Object. Can I obtain the progress directly using the List Multipart Uploads API of the JavaScript SDK?
Currently, the List Multipart Uploads
API needs to use a callback function. Therefore, you cannot obtain the progress directly.
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