Fix issue #463

This is a final fix for issue #463, needed for such case:
<img src="https://a248.e.akamai.net/camo.github.com/ca6159f253459a8a56f1ce049bcf10066c7f81e6/687474703a2f2f73746f72616765352e7374617469632e69746d616765732e72752f692f31332f303431302f685f313336353632333237395f333638373130355f646639653231363162362e706e67">