Does not work in Firefox

[franciscop]

It does not display the bar on Firefox, it stays like this indefinitely:

Browser: Firefox 54.0 (64-bit) for Linux

Animation seems to be supported on Firefox though: https://caniuse.com/#feat=svg-smil (and the example works).

Extra: it works perfectly in Chrome for Linux, so it's probably a Firefox issue.

[franciscop]

Extra: the console shows this error:

Unexpected value 0.3, 0.61, 0.355, 1.1 parsing keySplines attribute.

Reading the MDN doc of keySplines we get:

 The values of x1 y1 x2 y2 must all be in the range 0 to 1.

[tj]

ahh interesting, no bounce with the 1.1 :( haha, I never use FF personally

[franciscop]

"I never use FF personally" this might happen on other browsers though.

[tj]

yea I wonder if that breaks Edge too, shame, could just check the UA string too