Path names containing spaces cause an infinite redirect loop

[ifree]

I think the root cause is due to the fact that an escaped path name containing spaces will never be equal to the original path name.

framework/src/preview.ts

Lines 174 to 179 in 0186815

	const normalizedPathname = config.md.normalizeLink(pathname);
	if (pathname !== normalizedPathname) {
	res.writeHead(302, {Location: normalizedPathname + url.search});
	res.end();
	return;
	}

[Fil]

related to #783