Iframes on Ionic doesn't allow to pick a photo directly from the camera?

If i try to add this type of forms on an iframe i discovered that you cannot use the camera device to pick up a photo (all browsers supports this actually), even if i install the camera plugin (it’s obvious).

[https://mobilehtml5.org/ts/?id=23](http://Picks form)

I can fix this adding the cordova crosswalk plugin, but the app size increases about 28Mb, this is something inadmisible for me (even if i use the crosswalk lite mode).

How can i allow this kind of pick forms without install all that dependencies and libraries?