I have hacked together some HTML code that creates a signature block that will be displayed in a web viewer. The code seems to work perfectly when loaded in IE10 as a plain old .html, but when it is used inside a web viewer in filemaker advanced pro 13 the user must double tap the screen to start "drawing" their signature and double tap to begin drawing again after having lifted their finger. I am wondering if there is a way to begin drawing without having to double tap. Hopefully the user would be able to just touch the screen and begin signing. Thanks for any advice you may have.