Filter only works after first visit - maybe a cache issue?

[delueg]

Hello, i recognized on my own project where i want to add this filter that in firefox and safari this filter does not work the first time when you visit the page.. after it cached the .frag file mean on reload it works.. i also tried to cache the file first with jQuery.get but with no success. any help?

 

Firefox: 46.0.1

Macbook Pro.

 

EDIT: Really nobody? I mean this also happens on the example-page of Phaser, not only on my project.

Edited May 22, 2016 by delueg
no response, clearify the reason