[WEB-1277] Minecraft store - JavaScript TypeError on Firefox Version 66.0.3 (64-bit) on Linux

When coming from Minecraft.net, clicking on Download, landing on https://my.minecraft.net/en-us/store/minecraft/ loading the store never ends.

Console says there is a TypeError.

TypeError: n is undefined  [Learn More]            site.77584603b072.js:7:15615
  c             https://my.minecraft.net/static/js/site.77584603b072.js:7
  412           https://my.minecraft.net/static/js/site.77584603b072.js:7
  u             https://my.minecraft.net/static/js/vendor.d758c1956457.js:24
  fireWith      https://my.minecraft.net/static/js/vendor.d758c1956457.js:24
  ready         https://my.minecraft.net/static/js/vendor.d758c1956457.js:24
  f             https://my.minecraft.net/static/js/vendor.d758c1956457.js:14

Expected outcome:

The Minecraft store loads.

Actual outcome:

Store loads indefinitely; TypeError in Console.

Steps to reproduce:

Go to https://my.minecraft.net/en-us/store/minecraft/
Store never stops loading.