Prerequisites

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Description

Optional chaining is currently supported in Javascript files, but not in embedded script (<script> tag in HTML). It is currently treated as a ternary operator which breaks the detection of the closing tag </script> since a colon is expected.

I first reported the issue to language-vue to finally realized it was the case for all embedded scripts:
hedefalk/atom-vue#97

Steps to Reproduce

1. Open a HTML file
2. Within a <script> tag, use the optional chaining operator (i.e. window.test?.something)

Expected behavior: Closing script tag detected

Actual behavior: Closing script tag not detected

Reproduces how often: Always

Versions

Atom: 1.32.2 upgraded to 1.34.0
OS: macOS Mojave version 10.14.3 (18D109)