Form buttons not working on various sites, e.g. PayPal

[cmspencer]

cmspencer last edited by

Opera: 64.0.3417.73
Windows 10

There seem to be quite a few websites where HTML5 buttons don't work in Opera.
They work find in Chrome and Firefox.
For PayPal pay portal the console shows this error:
TypeError: Cannot read property '_listeners' of undefined
Code
function eventProxy(e) {
return this._listeners[e.type](options.event && options.event(e) || e);
}