From custom/high level logs, I see that some other users experience upload issues too
Yet the issue also seems local
When I start a 1.5mb upload, chrome gets stuck at 12%, the upload jumps to 79% instantly from that point (obviously a glitch) - and then, unless I restart Chrome, I can't reach my app/website
Very very absurd, it's likely not a network issue, as I can connect from another machine on the same network
Which leaves the possibility of this issue being an absurd chrome bug, failing the upload and blocking access to the website after that point, no matter whether I open a new tab etc. I can't reach the website after the upload fails ...
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Actually, after 5 minutes, the upload completed and access was restored, could AppEngine be forcing the browser to only connect from a single connection, therefore blocking simultaneous access?
(The upload should also complete in 15 seconds, 5 minutes is absurd)