URL is duplicated during UnityWebRequest redirection when it contains cookies

[aleh-patseyeu]

Environment

How do you use Sentry?
Sentry SaaS (sentry.io)

Which version of the SDK?
2.0.2-2.0.5 (haven't tested on < 2.0.0 versions)

How did you install the package? (Git-URL, Assetstore)
git-url

Which version of Unity?
2022.0.3.28f

Is this happening in Unity (editor) or on a player like Android, iOS, Windows?
iOS player (can't reproduce on Android)

Steps to Reproduce

Hard to provide exact steps for reproduction, because issue is happening in the wild, but what we have found is that for some reason, we got a duplicated URL during unity web request redirection, when URL contains cookies. For other cases it worked fine. Also it didn’t happen for each redirect request with the cookies, but often enough (maybe ~20%).

Issue is not reproducible with iOS native SDK support disabled.

Expected Result

URL is not duplicated.

Actual Result

URL is duplicated and the backend responds with 403 error.

Any logs or screenshots

[Mp3DownloadRequest] Request failed: url: https://content-stage.frever-content.com/Assets/Song/1529/Main/20230920T134058Uf6b18667eba54ce8b4c56eb1017475ac/content.mp3?Expires=1716256215&Signature=g063f76nCk5tNtFSnQ6fmcTSehx~fGJ6uA8s9DsMSW30VAJfUXwZMU74XOAgaCdoNxDl4eMIJroZwdfisXi7t~eTmmiyVwDUuCpYHHjDTBA3YtZxY5bdOzLTRXE2sHh3jA5P43o~m-UJ2iM8-yxandcLCISWCl98tUCV2X~D9OSCW8SmHWRSkRbWFMJyq51mvDhYqENFp-aW33R6GUGf5aVjedYHQhA2VQ31p1tStMGsnk5CZDKV8fxWMNsZevDW9JrKdXsfNf4Uo09Drvfx7Nx91J3likf7VcNPhgo0UcR5dR0o2iKUpBGMWP72jdZxEM8tedy2Et4Qg2ODWAHoaA__&Key-Pair-Id=APKAJYWSXGQANK2USB7A,https://content-stage.frever-content.com/Assets/Song/1529/Main/20230920T134058Uf6b18667eba54ce8b4c56eb1017475ac/content.mp3?Expires=1716256215&Signature=g063f76nCk5tNtFSnQ6fmcTSehx~fGJ6uA8s9DsMSW30VAJfUXwZMU74XOAgaCdoNxDl4eMIJroZwdfisXi7t~eTmmiyVwDUuCpYHHjDTBA3YtZxY5bdOzLTRXE2sHh3jA5P43o~m-UJ2iM8-yxandcLCISWCl98tUCV2X~D9OSCW8SmHWRSkRbWFMJyq51mvDhYqENFp-aW33R6GUGf5aVjedYHQhA2VQ31p1tStMGsnk5CZDKV8fxWMNsZevDW9JrKdXsfNf4Uo09Drvfx7Nx91J3likf7VcNPhgo0UcR5dR0o2iKUpBGMWP72jdZxEM8tedy2Et4Qg2ODWAHoaA__&Key-Pair-Id=APKAJYWSXGQANK2USB7A
, headers: {"x-cache":"Error from cloudfront","Content-Type":"text/xml","Server":"CloudFront","Via":"1.1 b42eb3d87622a28f769121f374a92fda.cloudfront.net (CloudFront)","x-amz-cf-pop":"WAW51-P4","Date":"Sat, 18 May 2024 13:50:15 GMT","Content-Length":"146","x-amz-cf-id":"BHPeFH3goAdPI12GpRrmeWeVTCkOx_qSP2juukUNH8uQc6p2ZrAWRQ=="}  

[bitsandfoxes]

Hey, sorry to see you run into issues:
Could you clarify a couple of things? This is about a game running on iOS. You're making a web request via UnityWebRequest and some of those requests fail due to the same URL being appended a second time. But only when they contain cookies?
Can you share with me how you set up those webrequests?

[seanwengccp]

Have same issue.
We use sentry in version 1.7.1 and Unity in version 2022.3.21. And if I remove sentry from project, redirection works fine.
As all I knew, there is no such issue before upgrading unity version from 2022.3.3.

[aleh-patseyeu]

Hey, sorry to see you run into issues: Could you clarify a couple of things? This is about a game running on iOS. You're making a web request via UnityWebRequest and some of those requests fail due to the same URL being appended a second time. But only when they contain cookies? Can you share with me how you set up those webrequests?

Yes, sure. There is nothing special:

var wr = UnityWebRequestMultimedia.GetAudioClip(url, AudioType.MPEG);
((DownloadHandlerAudioClip)wr.downloadHandler).streamAudio = false;
wr.SetRequestHeader("Authorization", "Bearer " + accessToken);

var asyncOperation = wr.SendWebRequest();
while (!asyncOperation.isDone)
{
      await Task.Delay(25, cancellationToken);
      cancellationToken.ThrowIfCancellationRequested();
}

var clip = DownloadHandlerAudioClip.GetContent(wr)

[bitsandfoxes]

Thanks! We'll try to reproduce this locally!