https://commons.m.wikimedia.org/wiki/Special:MediaSearch?search=&type=video
I noticed a large amount of errors from the same IP on Chrome/40.0.2214.109 which we currently support given it's an ES5 browser.
It's not an ES6 browser, so you might want to consider dropping support for ES5 browsers in the search experience using the new ES6 ResourceLoader module support that @Catrope introduced.
https://logstash.wikimedia.org/goto/a8c100294e507e87896bfeede6c1a454
```name=message
undefined is not a function
```
```name=trace
at module.exports.mounted URL1:486:835
at He <anonymous>:370:244
at Yt <anonymous>:384:197
at Object.jt.insert <anonymous>:379:221
at k <anonymous>:419:754
at wn.zi.nodeOps [as __patch__] <anonymous>:421:112
at wn.e._update <anonymous>:393:412
at wn.r <anonymous>:427:736
at fn.get <anonymous>:385:628
at new fn <anonymous>:385:546
URL1: https://commons.m.wikimedia.org/w/load.php?lang=en&modules=jquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cmobile.init%7Cskins.minerva.scripts%7Cwikibase.mediainfo.mediasearch.vue%7Cwikibase.mediainfo.search&skin=minerva&version=xd0jf
```