Sometimes scripts are used to create new pop-up windows. Avoid doing this unless it is necessary and the user is forewarned that it will happen.

Note: this is triggered by the presence of scripts on your page. Bobby cannot evaluate scripts and asks this question for all scripts found. If the scripts do not open windows or change the system focus, this technique does not apply.

Rationale:

Creating or switching windows changes the "system focus" which can interfere with access devices. It may also surprise