ClearKey license request payload is not recognized by the license server

[msanmart-akamai]

Environment

• The MPD passes the DASH-IF Conformance Tool on https://conformance.dashif.org/
• The stream has correct Access-Control-Allow-Origin headers (CORS)
• There are no network errors such as 404s in the browser console when trying to play the stream
• The issue observed is not mentioned on https://github.com/Dash-Industry-Forum/dash.js/wiki/FAQ
• The issue occurs in the latest reference client on http://reference.dashif.org/dash.js/ and not just on my page

• Link to playable MPD file: https://dash-license.westus.cloudapp.azure.com/Segments_32s_cbcs/Manifest_Segments_32s.mpd
• Dash.js version: Reference Client 4.1.0
• Browser name/version:
• OS name/version:

Steps to reproduce

1. Please provide clear steps to reproduce your problem
2. If the bug is intermittent, give a rough frequency if possible

Observed behavior

Describe what the player is doing that is unexpected or undesired behaviour.

Console output

Paste the contents of the browser console here.
You may need to enable debug logging in dash.js by calling player.updateSettings({ 'debug': { 'logLevel': dashjs.Debug.LOG_LEVEL_DEBUG }}) if you are using your own page.

Expected behavior

The player should issue a POST request agains the license server passing a valid JSON document,
for example: '{"kids":["3q36zovPVSu9LoakNKmlBA"],"type":"temporary"}'

The license server is not recognizing the payload generated by the player request and it is failing to provide the associated decryption key.

In all our previous tests with the player we used a mockup of the license server with a hardcoded response for the POST request (i.e. it wasn't parsing the POST payload) and all worked fine. Now this server is parsing it but failing to recognize the input.

[dsilhavy]

@msanmart-akamai We need more information here:

1. Which MPD are you testing with
2. What is the payload you are seeing
3. What is the parsing error and can you point out the potential mistake in the payload?

[msanmart-akamai]

Hi @dsilhavy , I added the MPD to the description in our mockup server. This MPD will be played just fine by the reference player because the server DO NOT parse the POST request payload.

[msanmart-akamai]

I closed this issue by mistake. No idea how to reactivate it.

[dsilhavy]

Probably related to #3601

@msanmart-akamai Please check if #3894 solves your issue. It will be available in nightly soon: https://reference.dashif.org/dash.js/nightly/samples/dash-if-reference-player/index.html

[msanmart-akamai]

Thanks, I will try it.

[msanmart-akamai]

The problem was fixed with #3894. So I am closing this ticket. I assume the fix will be available in the next release.
Thank you for your quick help.