Position Issue with iwModal and WebApplication Dialogs

Hi folks, so there appears to be differences in terms of display position of iwModal depending on the device/browser.

For example for iwModal: Desktop / Microsoft Edge, regardless of the size of the window.. it's centered. Android / Chrome, it acts as if the screen is about twice as wide and high as it is designed... Android / Edge behaves the same (sure, it's Chrome), but Android / FireFox centers the modal display properly.

For ShowConfirm or ShowPrompt, I haven't found a browser that fits this in the current view, they always seem to be positioned to the right and much wider than the display, requiring me to scroll over (no good).

I've tried things like iwModal.WindowLeft/Top/Width/Height for iwModal and it doesn't seem to matter. I've tried setting formwidth/height for WebApplication, that doesn't seem to do anything for this.

Tried to size the form only to the actual resolution of the display I'm testing on at design (as at design, it's rather wide so I can see all the display elements, including the modal components I use), no change.

It would seem to suggest Intraweb or the browser thinks the display for the popups is much larger than it is, but I suspect this is something the browser is reporting. Maybe this is fixed in newer versions of IW, but I'm currently stuck on 14. I wonder if anyone either:

a) knows where I can fix the dimensions for chrome in it's settings (I've looked, nothing is jumping out to me) 
b) some kind of scripted override to make these show up center (and within the dimensions) of the display.
c) or anything else you can think of for me to try.

Thanks.