I'm not surprised that it doesn't work.
Apple want to force their customers to use their cloud and their applications (or the "certified app" from their store that are paying them some fees).
So they drastically limit web applications: you can't even upload a file from your iPhone to a website....

It's nothing new, it's a problem since years for all WebApps developers with Apple. From an iOS update to another, it can change :
stackoverflow.com/questions/6336641/came...cess-through-browser

As I said, not an Apple user and also not a big fan of them, but

So I invite you to send the bug report to Apple, and ask them why people can't take jpg photos.

I doubt that you can't take JPEGs anymore with new Apple devices, but the standard has probably changed. And from practices I can tell you that it is extremely difficult to make users to change those settings on their mobile device. Otherwise I would just recommend to change to JPEG.
But it won't work. They won't do it or won't be able to do it.

LouisGac wrote: So they drastically limit web applications: you can't even upload a file from your iPhone to a website....

We got iOS, a browser, a file with a suffix .heic (with iPad or iPhone with A9 cpu or higher you get a .heic insteafd of a jpeg.) and a LimeSurvey upload question.

So when we try to upload pictures from the camera roll, LS won't allow it because it's .heic and not .jpg or .png.

If .heic is added to the suffixes the upload should take place.
The thumbnail display by LimeSurvey should be optional.

If using an example file ( nokiatech.github.io/heif/content/images/autumn_1440x960.heic ) the upload is working fine.


iOS via Safari isn't preventing upload to LimeSurvey when using the iOS cameraapp. The upload is working fine with Jpeg. Sorry, no A9 powered device at hands to get a .heic-file directly produced by the cameraapp. Why should a different filetype be stopped? It's no upload type via special HTML tag to support certain mobile devices.