First you should make clear that this app works in a normal browser on your old system. Then try either a FF v54 (or less) or a supported Chrome.
If none succeeds your out of luck, either switch your OS or try an alternative like Selenium.
If you want to participate in a horse race don't start by doping a donkey, just get a horse.
Anyway your JS bug doesn't sound like something which can be fixed with polyfills.
Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery
In reply to Re^8: How do I get WWW::Mechanize::PhantomJS to wait until the JavaScript on the web page has finished executing?
by LanX
in thread How do I get WWW::Mechanize::PhantomJS to wait until the JavaScript on the web page has finished executing?
by Darth Ed
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