Ok, then full screen mode seems not to be supported on your device. Which iOS version do you use?
In fact the button should then not be visible for PhotoSwipe 5 if fullscreen is not supported by the browser. I’ll fix that for the next update.
Does the other example at https://arnowelzel.de/en/projects/example-for-webgl provide a fullscreen mode? If my assumption is correct, that example should also not allow fullscreen as well.
You can also check this example – these images try to open in fullscreen mode right away, but I think this will also not work on your device:
https://photoswipe.com/native-fullscreen-on-open/
Edit: the example at Photoswipe.com cleary says “fullscreen API is supported in all major browsers, except mobile Safari.” – so no way to get fullscreen there, sorry.
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This reply was modified 2 years, 6 months ago by
Arno Welzel.