First playback of PlayReady content fails on EDGE browsers

[jakubjereczek]

Hello,

An issue observed on Microsoft Edge browser observed by other clients which are using Playready DRM.

Issue: First playback for playready protected content on Edge browser fails. The request for the DRM license returns a HTTP200; but the player fails with a "player_error_code": "MEDIA_ERR_DECODE"

Checking the Playready request, the response from the Playready request seems to include Revocation ListData:

<Revocation>
    <ListID>ioydTlK2p0WXkWklprR5Hw==</ListID>
    <ListData>

Second playback works: In this case the request for the playready license seems to include updated RevocationListInfo

<RevocationLists>
    <RevListInfo>
        <ListID>ioydTlK2p0WXkWklprR5Hw==</ListID>
        <Version>13</Version>
    </RevListInfo>
    <RevListInfo>
        <ListID>gC4IKKPHsUCCVhnlttibJw==</ListID>
        <Version>11</Version>
    </RevListInfo>
    <RevListInfo>
        <ListID>Ef/RUojT3U6Ct2jqTCChbA==</ListID>
        <Version>70</Version>
    </RevListInfo>
    <RevListInfo>
        <ListID>BOZ1zT1UnEqfCf5tJOi/kA==</ListID>
        <Version>12</Version>
    </RevListInfo>
</RevocationLists>

We have Charles's logs, I can send them, or I will try to analyze them and describe the issue in more detail.

[jakubjereczek]

Charles logs: https://drive.google.com/drive/folders/1LJXrZ0TP6c8O-ogCRxxZ2k9ZHajXIwMa?usp=sharing

[m-scheepers]

@peaBerberian in this case we notice that the client gets a 200 OK on the first license request; however for some reason it fails to playback content (the player seems to return MEDIA_ERR_DECODE).

On the second try playback is possible. The only difference I see is the RevocationListInfo in the request

[peaBerberian]

Hi, sorry for the late response.

This happens for all contents? Do you have the last update from your browser and OS? We often have temporary issues with PlayReady.