firefox 59 open project error (show blank page) #330

Hello:
WebIDE is very good!, but only run on chrome browser.
Firefox 59 is very fast then chrome, but when open project, console show:
TypeError: n[1] is undefined[Learn More] main.3c5d1eafc8ca734a6d9c.js:1:629425
TypeError: y is undefined[Learn More] main.3c5d1eafc8ca734a6d9c.js:1:629084
Unhandled promise rejection TypeError: n.i(...) is not a function
Stack trace:
@http://webide:9090/rs/main.3c5d1eafc8ca734a6d9c.js:1:472856 ....

thank your help !