TUS DELETE request fails with Cloudflare Stream

[aerni]

Initial checklist

• I understand this is a bug report and questions should be posted in the Community Forum
• I searched issues and couldn’t find anything (or linked relevant results below)

Link to runnable example

No response

Steps to reproduce

I'm using Uppy Dashboard with TUS to upload videos to Cloudflare Stream. I've got the upload and resumability working as expected. But I'm running into issues when cancelling the download using the X button in the Dashboard UI. I've been researching for hours and came across a Cloudflare forum post mentioning, that Cloudflare Stream doesn't support the TUS termination extension. So it makes sense, that I'm running into these exceptions:

According to Cloudflare, I'm supposed to send a DELETE request to the regular API endpoint. Now I'm wondering how I might implement this with Uppy? Is there a way to override the endpoint URL that is used when the TUS upload is aborted? I found this issue that made me wonder if I could maybe override the URL in the onBeforeRequest. I was able to set the URL but the request to Cloudflare still uses the initial endpoint URL.

uppy.use(Tus, {
    endpoint: "https://initial-endpoint.com",
    onBeforeRequest: function (req) {
        if (req.getMethod() === 'DELETE') {
            req._url = "https://delete-endpoint.com";
        }
    },
});

I opened an issue because I believe this to be an important feature, as quite some people are using Cloudflare Stream. I also found this issue that initially talked about implementing the termination extension.

Expected behavior

The DELETE request shouldn't fail. But in the case of Cloudflare Stream, there needs to be a way to pass a different endpoint for DELETE requests.

Actual behavior

The DELETE requests fail as per bug description.