msa.js doesn't work with Firefox Nightly 85

[MrTomRod]

On Firefox 85+, msa.js is broken on msa.biojs.net as well as on your demo site.

Note that Firefox 85 will be relased soon! (2021-01-26)

On msa.biojs.net:

Uncaught TypeError: t.on is not a function
    resetSeqs index.js:58
    e index.js:56
    resetSeqs index.js:59
    t index.js:14
    _loadSeqs msa.js:121
    initialize msa.js:79
    Backbone 3
    <anonymous> norowuvoqo.js:18
index.js:58:9
    resetSeqs index.js:58
    e index.js:56
    resetSeqs index.js:59
    t index.js:14
    _loadSeqs msa.js:121
    initialize msa.js:79
    Backbone 3
    <anonymous> norowuvoqo.js:18

on your site:

TypeError: e.on is not a function
    resetSeqs shallowEqual.js:4
    _ shallowEqual.js:4
    _ shallowEqual.js:4
    columnHeights shallowEqual.js:4
    c index.js:9
    o index.js:9
    s index.js:9
    o index.js:9
    s index.js:9
    o index.js:9
    value shallowEqual.js:4
    React 24
    706 shallowEqual.js:4
    706 shallowEqual.js:4
    Webpack 6
react-dom.production.min.js:13
    React 25
    706 shallowEqual.js:4
    706 shallowEqual.js:4
    Webpack 6

I already reported the issue here: wilzbach/msa#257

The developer said that he hasn't touched the code in years and is very busy on his new job. I hope that you can fix the issue!