One additional issue with mobile browsers are the "lightbox" popups. ie. when you click route planning icon on open route screen, it opens to the new popup over the current window with dark background. These do not work very well on iPad for example, the positioning of the window is wrong and scrolling inside of the popup is difficult.
a) try to find another similar modal popup script that works
b) just replace all popups in mobile browsers to open a completely new tab/window to browser.
For option a) please try out for me the colorbox add-on: http://jacklmoore.com/colorbox/example4/
Please try the 'Outside HTML (Ajax)', 'Outside Webpage (Iframe)' and 'Inline HTML' links on mobile browsers, and let me know that:
- does the popup open propely, so that it is placed at the current scrolling position of the screen. In other words do you see the WHOLE popup without having to scroll the main (background) page
- on the "outside webpage" popup, can you scroll the popup window content without problems? (ipad, two-finger or one-finger scroll)
I'm on the road so cannot test other than with my Lumia 800
, and it's not that perfect on it... So it may be easier for compatibility just to open a whole new window for the popups on mobile users.