Abstract: A computer-implemented method, system, and/or computer program product handles content availability error codes. A content refresh response, responsive to a content refresh request that requests content being displayed on a user interface to be updated, is received by and stored in a buffer in a client computer. The content refresh request was generated by a content renderer in the client computer, and the buffer is isolated from the content renderer. The content refresh response is then transmitted from the buffer to a content refresh handler, such that the content refresh handler prevents the content refresh response from being sent directly from the buffer to the content renderer without the content refresh response first being analyzed by the content refresh handler.

Abstract: A computer-implemented method, system, and/or computer program product handles content availability error codes. A content refresh response, responsive to a content refresh request that requests content being displayed on a user interface to be updated, is received by and stored in a buffer in a client computer. The content refresh request was generated by a content renderer in the client computer, and the buffer is isolated from the content renderer. The content refresh response is then transmitted from the buffer to a content refresh handler, such that the content refresh handler prevents the content refresh response from being sent directly from the buffer to the content renderer without the content refresh response first being analyzed by the content refresh handler.

Abstract: A method is presented for a GUI mechanism to restrict user input within a GUI window. A GUI control disablement function is activated by selecting a GUI control, which is dedicated to selecting enablement or disablement of the GUI control disablement function. When a user input event is received, the received user input event is discarded when the GUI control disablement function is in an activated state. At a granularity over an entire window, a user can select a GUI control that is associated with a GUI window, and the GUI control is not contained within the GUI window. The GUI window is then locked in response to selecting the GUI control such that subsequent user input for GUI controls within the GUI window cannot select those GUI controls.