Opener id is null when clicking "Add Media" button using the media library popup

I am also facing same issue, I tried the Metatag hack which is mentioned #9 and it dosen't worked for me. I have also applied #15 patch and also that is not working for me. Still looking for solution.

I never saw this in 8.x-1.x versions but I am now seeing the exact same issues as described in the initial issue report after upgrading to 2.0.0. Looks like there isn't much here to go on but I'll try to dig in and follow up on what I find. Downgrading to 8.x-1.26 works around the issue (at least in my use case).

I'm leaving the version as 8.x-1.x-dev here since the issue still seems to be active there as well.

On the 2.0.x-dev version this is at least somewhat related to 📌 Support JSON API, REST, GraphQL and custom normalizations via new computed field Fixed .

In my testing I found the issue is triggered somewhere along the line when the metatag_computed field is computed in \Drupal\metatag\Plugin\Field\MetatagEntityFieldItemList::computeValue. Specifically it seems to come up after all the relevant entities for the media library view have been computed (i.e. there doesn't appear to be a specific entity or anything triggering the issue).

I further traced this to \Drupal\metatag\MetatagManager::processTagValue where if I comment out the line handling token replacement the issue goes away. This obviously is not a solution as it disables token replacement in tags but maybe it points to something deeper in \Drupal\Core\Utility\Token::doReplace? There were kind of recent changes to that handling in #2580723: Fix token system confusion, with new function Token::replacePlain() → but I haven't made it so far as testing this with different versions of Drupal core (and I'm thinking that's a dead end anyway).

I also haven't been able to test this with a fresh Drupal installation and the relevant modules yet so I'm not ruling out something specific to our entity configurations or hooks.

Following up on the token lead... in my metatag.metatag_defaults.global.yml config I have (among other things):

uuid: 0031d9a6-85cc-41f3-aa0b-46660705ab08
langcode: en
status: true
dependencies: {  }
_core:
  default_config_hash: sL588ui1E_8-2c_UupwyYxcqX2OVyMFp3HTLbbFqvPc
id: global
label: Global
tags:
  title: '[current-page:title] | [site:name]'
  canonical_url: '[current-page:url]'
  og_url: '[current-page:url]'
  og_site_name: '[site:name]'
  og_title: '[current-page:title]'

I found that if I remove the two references to [current-page:url] from the config the issue goes away. So it seems this somehow has to do with the handling of that particular token for Media entities (or at least for Media entities as configured on my site).

And thinking about it now having current-page references in the global config is probably unwise. So at least in this case I will probably work around the issue but making those configuration more precise.

I'm getting this same issue (media library pop-up not working) after upgrade from 8.x-1.26 to 2.0.0. I'm getting a similar error to the one posted in the original summary of this issue:

StatusText: error
ResponseText: The website encountered an unexpected error. Please try again later.InvalidArgumentException: The opener ID parameter is required and must be a string. in Drupal\media_library\MediaLibraryState->validateRequiredParameters() (line 143 of core/modules/media_library/src/MediaLibraryState.php).

I'm testing with Drupal 9.5.11 and PHP 8.1.

I've downgraded to 8.x-1.26 for now to resolve the issue.

This is still an issue, steps from #9 worked for me.

Fix in #9 also worked for me. Additionally, I updated the Open Graph -> Page URL setting to "[media:url]" as well, as recommended in #21.