AWS S3 Pre-signed URL Expiration Not Matching Expected Time After Redirection
After trying multiple solutions online, I still can't figure this out. I am generating pre-signed URLs in my Node.js application using the AWS SDK for JavaScript (v2.1033.0). The URLs are supposed to expire after 15 minutes, but I consistently find that they are becoming invalid after only a few seconds, especially when accessed through a redirect in my application. I am using the following code to generate the pre-signed URL: ```javascript const AWS = require('aws-sdk'); const s3 = new AWS.S3(); const generatePreSignedUrl = (bucketName, objectKey) => { const params = { Bucket: bucketName, Key: objectKey, Expires: 900 // 15 minutes }; return s3.getSignedUrl('getObject', params); }; const url = generatePreSignedUrl('my-bucket', 'path/to/my-object'); console.log(url); ``` When I use the generated URL directly in the browser, it works fine for about 15 minutes as expected. However, when I implement a redirection (HTTP 302) where the pre-signed URL is passed along, it fails after just a few seconds, returning a `403 Forbidden` behavior. I've tried examining the HTTP headers and the response times, but everything seems normal on that end. To troubleshoot, I attempted adjusting the `Expires` parameter to various values ranging from 300 to 1800 seconds, but the scenario continues. I also ensured that the system clocks of my server and any clients are synchronized to avoid issues with timestamp validation. Is there a known limitation or best practice regarding pre-signed URLs when using redirection, or could it be related to the way the URL is being passed or cached during the HTTP redirect? Any insights on this behavior would be greatly appreciated! My development environment is macOS. Thanks in advance!