tree d4978e4ed224910220a836fd76726c4dc5ab6ebd
parent dce8da9b6bfb44c3123511a3a2ef3e1d70337efc
author Ben Rohlfs <brohlfs@google.com> 1649233911 +0200
committer Ben Rohlfs <brohlfs@google.com> 1649233911 +0200

Ignore duplicate syntax layer ranges

HighlightJS has a bug when highlighting md files. It would produce
hundreds of nested `strong` and `emphasis` ranges (for every line).
Large md files (e.g. in https://crrev.com/c/3564486) would then be
incredibly slow to render.

There are a couple of options to work around this bug. It seemed
best to just ignore duplicate ranges in the worker.

The fix was verified by building a local version of the syntax-worker
and loading it using Dev Helper with the change mentioned above.

Release-Notes: skip
Google-Bug-Id: b/227797617
Change-Id: I475fcb175d3fc479b3e8cb3768dfb95a6ce4229e