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<!DOCTYPE html>
<title>Longdesc test: iframe discoverability</title>
<iframe src="external-image-external-description-manual.html" width="480" height="320">
<p>If there is no document included here with an image, the result of the test is unknowable</p>
<p>In order to pass, it should be possible to discover that there is an image with a longdesc included in this document (inside an iframe).