This example shows how to set GoogleStreetViewLoader to load from a google maps URL.
Try https://www.google.com/maps/@51.5316182,-0.125108,3a,75y,158.01h,90t/data=!3m6!1e1!3m4!1skCisB_W6mNaYBgdxg0AX8A!2e0!7i16384!8i8192