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[encrypted-media] Define behavior if sanitized data is empty

From: ddorwin via GitHub <sysbot+gh@w3.org>
Date: Tue, 26 May 2015 18:22:02 +0000
To: public-html-media@w3.org
Message-ID: <issues.opened-81077818-1432664522-sysbot+gh@w3.org>
ddorwin has just created a new issue for 

== Define behavior if sanitized data is empty ==
In all cases where data is sanitized, the next steps says, "If the 
previous step failed, reject promise..." This should probably say, "If
 the previous step failed **or the sanitized data is empty**, reject 

For _init data_, the issue is a little more complex. The sanitization 
step says to "remove entries that are not needed by the CDM," which 
could result in an empty _sanitized init data_. If the promise is 
rejected there, `InvalidAccessError` would be used. However, the 
original intent before sanitization and currently-defined behavior 
would be for the CDM to reject the promise with `NotSupportedError`, 
which is more accurate - the `initData` did not contain data supported
 by this CDM.

See https://github.com/w3c/encrypted-media/issues/61
Received on Tuesday, 26 May 2015 18:22:03 UTC

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