textDocument/hover failed, cause: unescaped curly brace in regex

[oatymart]

I have another instance of Request textDocument/hover failed with message: Cannot read property 'data' of undefined Code: -32603.

I believe it is caused by a weird (but valid) syntax I had to write for my component which receives an external regex as a prop. Because Svelte doesn't have a way to escape a single curly brace inside an expression, I used a stringified curly brace inside an expression to keep my regex format.

<FeedbackInput pattern="^[\s\S]{'{0,5}'}$" />

I can avoid the hover error by replacing my code with:

<FeedbackInput pattern="^[\s\S]&#123;0,5}$" />

but I don't want to.

[alexprey]

Can not reproduce with fixes in #30