Button and touchscreen on windows

Question

Sorry for posting a similar question twice but I just can't get an answer and I want to make it simple.

1. I make a new HTML5 canvas project

2. I put one button and add a down state that changes its color

3. I test the project on any browser with a mouse and it works - the button is of different color when it is pressed

4. I test on mobile and it works just as it works on 3.

5. I test on a windows device connected to a touchscreen and the down state doesn't work. Why?

6. It does work on firefox if I specifically enable 'dom.w3c_touch_events.legacy_apis.enabled' and set 'dom.w3c_touch_events.enabled' to 1.

kglad · Answer

every browser has its own implementation of html, css and javascript. that adds variability to what users see but eliminates the security issues with using plug-ins (like the defunct flash player which guaranted uniformity among browsers).

also, most browser have settings (like the one on firefox that you found) that may enable/disable certain "features".

you can start to debug different browsers by checking the developer's console in each browser and you can google the browser you find problematic.

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