Snowpack should tolerate UTF-8 BOM in index.html

[fuzzykiller]

If index.html starts with a UTF-8 BOM, the logic to decide whether it’s a full HTML page fails:

https://github.com/snowpackjs/snowpack/blob/968b01cdf93998d1ea354fd79ab4c82a01f0eed4/snowpack/src/build/build-import-proxy.ts#L92

This code should instead work even if the file starts with a byte-order mark.

[FredKSchott]

Yes! someone else just reported this, I'll put in a quick fix to trim this

[FredKSchott]

Fixed here: 9492843

[fuzzykiller]

Awesome, thanks!