Authorization header when following redirects

问题

When following redirects for a 303 response, in a Chrome, IE, and Firefox, the Authorization header is included.
That's an issue when a request to an internal service respond with a signed S3 URL in the Location header.
S3 will respond with a 400 response, and can't figure out which authentication method to use.

Request to internal service

GET INTERNAL_SERVICE HTTP/1.1
Pragma: no-cache
Origin: https://example.com
Accept-Encoding: gzip, deflate, br
Accept-Language: en-GB,en;q=0.9,en-US;q=0.8,da;q=0.7,de;q=0.6
Authorization: Bearer g6YQjOy3BDu32es8xKdMRNpcQ2Fkrh5NG7y5fDs5
Accept: application/json, text/plain, */*
Cache-Control: no-cache
Authority: example.com
Host: example.com
Connection: close

Response

HTTP/1.1 303 See Other
Date: Tue, 13 Mar 2018 08:55:12 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 0
Connection: close
Server: nginx
location: S3_SIGNED_URL
Cache-Control: no-cache, private
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS
Access-Control-Allow-Headers: Content-Type, Accept, Authorization, X-                        
Requested-With
Access-Control-Max-Age: 28800

Request to S3

GET S3_SIGNED_URL HTTP/1.1
Pragma: no-cache
Origin: https://example.com
Accept-Encoding: gzip, deflate, br
Accept-Language: en-GB,en;q=0.9,en-US;q=0.8,da;q=0.7,de;q=0.6
Authorization: Bearer g6YQjOy3BDu32es8xKdMRNpcQ2Fkrh5NG7y5fDs5
Accept: application/json, text/plain, */*
Cache-Control: no-cache
Authority: example.com
Host: BUCKET_NAME.s3.eu-central-1.amazonaws.com
Connection: close

Response

HTTP/1.1 400 Bad Request
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET
Access-Control-Max-Age: 3000
Vary: Origin, Access-Control-Request-Headers, Access-Control-Request-Method
x-amz-request-id: REQUEST_ID
x-amz-id-2: AMZ_ID
Content-Type: application/xml
Transfer-Encoding: chunked
Date: Tue, 13 Mar 2018 09:06:41 GMT
Connection: close
Server: AmazonS3

<?xml version="1.0" encoding="UTF-8"?>
<Error>
   <Code>InvalidArgument</Code>
   <Message>Only one auth mechanism allowed; only the X-Amz-Algorithm     
query parameter, Signature query string parameter or the Authorization 
header should be specified</Message>
   <ArgumentName>Authorization</ArgumentName>
   <ArgumentValue>Bearer g6YQjOy3BDu32es8xKdMRNpcQ2Fkrh5NG7y5fDs5</ArgumentValue>
   <RequestId>REQUEST_ID</RequestId>
   <HostId>HOST_ID</HostId>
</Error>

Is there a way to instruct the browser to ignore the Authorization header, or force S3 to ignore the header?

回答1:

Kind of a kludge, but there is a workaround to this situation by using CloudFront to front S3. More information posted here: ReactJS- remove HTTP header before redirect

来源：https://stackoverflow.com/questions/49253245/authorization-header-when-following-redirects

标签

javascript

amazon-s3

browser