view is undefined (Javascript) because view container has multiple classes

Hi,

After updating in 8.x-1.4, infinite scroll on click stop working due to javascript error :
'view is undefined'

On my view container, I have multiple classes like that :
<section class="js-view-dom-id-b89cec43e1556f9222a1be13111c8002ac4e0fee743168d79bd4eba6c8cf63c4 _up _down">

And the javascript selector does not take that in account, it get all classes :
infinite-scroll.js => line 29.
var currentViewId = this.attr('class').replace(/(.*)js-view-dom-id-/, 'views_dom_id:');

So the 'currentViewId' become 'views_dom_id:b89cec43e1556f9222a1be13111c8002ac4e0fee743168d79bd4eba6c8cf63c4 _up _down', and then, it's an undefined view.

I've fixed the code with this :

    var regexp = /(js-view-dom-id-\w+)/;
    var matches = regexp.exec(this.attr('class'));

    // var currentViewId = this.attr('class').replace(/.*js-view-dom-id-(\w+).*/, 'views_dom_id:');
    var currentViewId = matches[1].replace(/js-view-dom-id-/, 'views_dom_id:');

But it can be much more improved.

Thanks for reading.