In Firefox sometimes 'window.sessionStorage' access throws although `'sessionStorage' in window` succeeds. This was causing boot.js to unneccessarily fail.
In Firefox sometimes 'window.sessionStorage' access throws although
`'sessionStorage' in window` succeeds.
This was causing boot.js to unneccessarily fail.

meekostuff/HyperFrameset,meekostuff/HyperFrameset,meekostuff/HyperFrameset