Not highlighting correctly

[alvarotrigo]

I posted this issue originally on the the highlight.js repository but I guess the problem is on this port rather than on the JS library itself:
highlightjs/highlight.js#3743

Describe the issue

Having something like this:

  const optionToSelect = $options.find(item => item.text ===text);

The whole optionToSelect = $options.find( gets the same color without separating the find function.
I'm not using auto-detection.

Picture:

Here's the right coloring using the latest version of the JS component highlight.js. Notice the "find" gets colored.
https://jsfiddle.net/chy5nd72/

Sample Code to Reproduce

This is how jsfiddle shows it:

This is how Prism.js shows it:

Expected behavior
It should look more like this: