I recently started a project in Construct 2 with the intention of building a web-based pixelart game. My idea was to give it the resolution of 480x260 so that it would work from within any browser on any platform going as low as iPhone 3GS, and scaling up when necessary using fullscreen mode with integer letterboxing.
However, upon exporting the game to HTML5 it seems that iOS isn't picking up on any of the meta tags telling it to treat the website like a web application (or so it seems to me).
For example, the address bar is still showing, and the website is draggable whenever I touch and drag which effectively makes the game unplayable on any iOS device (and possibly Android devices as well?).
Here's a demo so you can see for yourselves.
Construct 2 r91 beta (64-bit)
Preview browser: Firefox
Fullscreen in browser: Letterbox integer scale
Enable WebGL: On
Clear background: No