Work around the bogus caretOffset we get for WebKitGtk content which doesn't have the caret
Work around the bogus caretOffset we get for WebKitGtk content which doesn't have the caret

pvagner/orca,h4ck3rm1k3/orca-sonar,chrys87/orca-beep,GNOME/orca,pvagner/orca,GNOME/orca,GNOME/orca,GNOME/orca,h4ck3rm1k3/orca-sonar,chrys87/orca-beep,pvagner/orca,chrys87/orca-beep,h4ck3rm1k3/orca-sonar,pvagner/orca,chrys87/orca-beep