Builder's diagnostics for HTML are a bit counterproductive
Submitted by Elad Alfassa
At the moment, Builder seems to attempt to validate HTML documents as if they were XML documents.
This is a bit problematic, because it highlights things such as "<!doctype html>" as an error (it's not an error, it's recommended by both W3C and WHATWG).
It also thinks that
<br> tags should have a closing tag (they shouldn't), and will autocomplete
</br> when you type
<br>, which is invalid.
Anyone who is new to HTML might trust Builder's diagnostics and autocompletion here, leading them to writing slightly broken code.
I think there are two possible ways to fix this:
stop attempting to validate / complete HTML, and continue doing so for XML only
Add html quirks for the xml diagnostics&autocompletion plugin to make it support
<br>tags and <!doctype> declarations.