Need to show a video to user just once.
After watching, user presses OK and next page is shown.
Need to prevent user pressing browser <Back> button and reviewing video.
Any suggestions?
<video width="640" controls="controls" preload="auto">
<source src="_VIDEO/<% = video_filename %>.mp4" type="video/mp4"/>
<source src="_VIDEO/<% = video_filename %>.ogv" type="video/ogg"/>
<source src="_VIDEO/<% = video_filename %>.webm" type="video/webm"/>
Your browser does not support the video tag.
</video>
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