Regression in IE11 with version 2.6.0

[vieira]

We are getting an error in IE11 only since version 2.6.0 (does not happen with 2.5.7). It seems to be related with some missing polyfill in the build/dist.

unable to get property enumerable of undefined

It seems to happen in the following snippet:

function ownKeys(object, enumerableOnly) {
  var keys = Object.keys(object);
  if (Object.getOwnPropertySymbols) {
    var symbols = Object.getOwnPropertySymbols(object);
    if (enumerableOnly) symbols = symbols.filter(function (sym) {
      return Object.getOwnPropertyDescriptor(object, sym).enumerable; // unable to get property enumerable of undefined
    });
    keys.push.apply(keys, symbols);
  }
  return keys;
}

Including the following polyfill makes the problem go away so it seems to be some missing polyfill in the build of react-ga, however we were unable to pinpoint what, exactly, is missing.

<script src="https://cdn.polyfill.io/v3/polyfill.js"></script>

Any idea?

Thank you!

[cwallervand]

Having the same issue. @vieira Did you figure out about the polyfill?

[cwallervand]

I tried importing react-ga/core instead of react-ga: import ReactGA from 'react-ga/core'; and that got rid of the issue as far as I can see. I'm on vesrion 2.7.0 btw