Abstract: A system for remote validation of user interactions for client-side scripting may include one or more processors and memory. The processors may receive a transcript of user interactions recorded during an execution of a client-side script and a corresponding score. The transcript may include an indication of a relative time when each user interaction was recorded. The processors may execute the client-side script and recreate the user interactions during the execution at the relative times indicated by the transcript, may calculate a second score for the user interactions based at least in part on at least some of the user interactions and the relative times when the user interactions are recreated during the execution of the client-side script, and may provide the second score when it is equivalent to the received score, otherwise may provide an indication that the user interactions are invalid and/or that the received score is invalid.

Abstract: The subject matter of this specification can be implemented in, among other things, a method that includes providing a first image from a server system to a client computing device for display and providing a second image from the server system to the client computing device for display. The method also includes providing instructions from the server system to the client computing device for displaying a window over the first image that displays a portion of the second image within the window, where the portion of the second image displayed within the window corresponds to a position of the window over the first image, and where the portions of the second image include one or more rectangular shapes to approximate a curved shape.