waitForReadyState
Waits for the document's ready state to reach a specified state.
This method continuously checks the document's ready state until it matches the specified state or a timeout occurs.
Return
True if the ready state matches the specified state before the timeout, false otherwise.
Parameters
until
The desired ready state to wait for. Can be LOADING, INTERACTIVE, or COMPLETE. Defaults to INTERACTIVE.
Throws
if the timeout is reached before the ready state matches.