https://trac.nginx.org/nginx/ticket/979
https://trac.nginx.org/nginx/ticket/959

It's a known bug

> ZaneCEO <mailto:nginx-forum@forum.nginx.org>
> 5 June 2016 at 01:17
> Hi guys,
> I'm at my first deploy of Nginx with php-fpm after 10+ years of love with
> Apache and mod_php. So far so (very) good.
>
> I just have a peculiar issue with Safari on iOS. As you can read here
> http://stackoverflow.com/questions/37635277/safari-on-ios-fails-to-ajax-upload-some-image-file-cannot-connect-to-server
> , my webapp allows the user to select an image, client-resize it via
> JS and
> then upload it via jQuery.
>
> The problem is that Safari on iOS 9 sometimes fails the upload with the
> error
>
> POST <my upload url>, Could not connect to the server.
>
> I just found out that when I disabled the HTTP/2 form my server config the
> issue vanishes.
>
> Is this a known issue somehow? Is there any other solution that doesn't
> require me to go nuclear on HTTP/2?
>
> Thanks for your help!
>
> Posted at Nginx Forum:
> https://forum.nginx.org/read.php?2,267385,267385#msg-267385
>
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