Convert Google Maps embed HTML to Street View URL

You can use the form below to convert the HTML embed code Google Maps gives you to a usable Street View URL

Why do I need this?

The new Google Maps layout has a chain-link icon on the left that gives you a URL to what you’re looking at.┬áIf you’re in Street View, sometimes the given URL doesn’t include the proper parameters and you end up back on the top-down map view. This converter pulls a valid Street View URL out of the embed HTML.

source code