Bail if document is not defined.
Bail if document is not defined.

pluma/react-document-title,danieljuhl/react-document-title,iest/react-body-classname,gnoff/react-document-title,DLMR/react-document-title,frederickfogerty/react-document-title,PactCoffee/react-body-classname,gaearon/react-document-title,Ambroos/react-document-title,Ambroos/react-nested-status