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The UI is also, to our understanding, not accessible and is apparently impossible to make accessible. Whether true or not, it definitely is not by default and no fixes for this have been provided. It is believed that hiding the propagation status reporting is accessible, and a the idp.logout.propagationHidden 4.2 property exists in V4.2+ to hide this reporting from the user both for accessibility and because of the large number of false positives and negatives that are typically encountered.
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