Uploading large files times out

[rschuiling]

I kept getting an error when uploading a file of 26GB from rclone WebGUI to Scaleway storage.

rc: "operations/uploadfile": error: multipart upload failed to read source: context canceled

It appears this is due to a browser timeout on uploading very large files. Uploading through the rclone CLI worked perfectly.

It would be my recommendation to at least mention in the docs that no large uploads should be tried using the WebUI. Or perhaps put a warning in the WebGUI about this. Or maybe a better log warning is possible? 'Context canceled' does not really point to a timeout error for me.

See also this forum discussion: https://forum.rclone.org/t/webgui-file-too-large-when-uploading-to-scaleway/24128