HTML title in md

[MattPChoy]

Is there a way to encode the HTML page's title in the markdown source file?

[JimLyu]

I think the following code may works with metadata at the beginning like this:
{{{"title":"YOUR TITLE"}}} or ---"title":"YOUR TITLE"---

mdmath/extension.js

Lines 75 to 94 in b562f83

	frontmatter(markdown) {
	const data = {};
	let frontmatter;
	markdown.replace(/^\s*?[{\-]{3}([\s\S]+?)[}\-.]{3}\s*?/g, ($0,$1) => { frontmatter = $1; return '';});
	if (frontmatter) {
	try {
	frontmatter = JSON.parse(`{${frontmatter}}`);
	Object.assign(data, frontmatter);
	}
	catch (err) {
	const transform = (pos) => `in frontmatter: … ${frontmatter.substring(Math.max(0,pos-15),pos-1)}¿${frontmatter.substring(pos-1,Math.min(pos+15,frontmatter.length-1))} …`;
	const errstr = err.message.replace(/in JSON at position (\d+)/, ($0,$1) => { return transform(+$1)});
	ext.errMsg(errstr);
	}
	}
	return data;
	},

But unfortunately, this code does not clear the metadata from the output.
I guess it should be like this at line 79:

markdown = markdown.replace(/^\s*?[{\-]{3}([\s\S]+?)[}\-.]{3}\s*?/g, ($0,$1) => { frontmatter = $1; return '';});