Chrome doesn’t display Burmese language characters correctly and you won’t be able to read anything on websites written in them. Both ZawGyi or unicode characters show up as blank boxes and there’s no way to change the Language or Input settings in Chrome to get them to show up. It’s been this way for 51 versions.
Luckily, the Myanmar Font Tools extension on the Chrome Web Store adds the ability to display these characters. You can also check out the Github repository if you want to compile it yourself. There’s no configuring or tweaking needed and after you’ve installed it, pages with Burmese characters will display correctly.
Honestly, I don’t know why this functionality isn’t available by default in Chrome. It’s a slight annoyance, but it should be included in the list of languages.