It looks like the hint isn't displaying in Safari because it can't find the supportsType function (This error is also displays in the console in Firefox and Chrome).
As a test, I copied and pasted this function from js.tt2 into <head> and the hint displayed. See the attached image. But it does look like the function needs to be tweaked to be a little more date-centric. 'mm/dd/yyyy' instead of 'Hello World.'
It looks like the hint isn't displaying in Safari because it can't find the supportsType function (This error is also displays in the console in Firefox and Chrome).
As a test, I copied and pasted this function from js.tt2 into <head> and the hint displayed. See the attached image. But it does look like the function needs to be tweaked to be a little more date-centric. 'mm/dd/yyyy' instead of 'Hello World.'