An interface for changing the focus of the driver to another frame or window.
defaultContent()code »
Schedules a command to switch focus of all future commands to the first frame on the page.
frame(nameOrIndex)code »
Schedules a command to switch the focus of all future commands to another frame on the page.
If the frame is specified by a number, the command will switch to the frame by its (zero-based) index into window.frames.
If the frame is specified by a string, the command will select the frame by its name or ID. To select sub-frames, simply separate the frame names/IDs by dots. As an example, "main.child" will select the frame with the name "main" and then its child "child".
If the specified frame can not be found, the deferred result will errback with a bot.ErrorCode.NO_SUCH_FRAME error.