Options through meta tags only works while generating from string

[DeadlyJesus]

Hi,

I was trying to set options using meta tags while generating a pdf from an html file, but they were not used.
While looking at pdfkit's code I noticed that the meta tag parsing is only enabled when using from_string

python-pdfkit/pdfkit/pdfkit.py

Lines 46 to 47 in fb86d33

	if self.source.isString():
	self.options.update(self._find_options_in_meta(url_or_file))

The documentation doesn't seems to mention this restriction.
Is there any reason to only allow meta tags options for string input ?

An easy workaround would be to read the html file and use from_string instead of from_file but it just seems weird.
Especially since _find_options_in_meta uses both strings and file-like objects

python-pdfkit/pdfkit/pdfkit.py

Lines 277 to 284 in fb86d33

	def _find_options_in_meta(self, content):
	"""Reads 'content' and extracts options encoded in HTML meta tags
	:param content: str or file-like object - contains HTML to parse
	returns:
	dict: {config option: value}
	"""