GraphQL: Document CORS support

[keharper]

Community engineering issue

Type of Doc:

• New topic
• Topic Update, Devdoc link:
• Other

Magento 2 GitHub Issue: magento/magento2#31195

Magento 2 GitHub PR: magento/magento2#31484

Magento 2 version:

• 2.4

Notifications of Changes:

• Changes to Admin interface?
• New software requirements?
• New REST endpoints or updated GraphQL query syntax?
• New command line option?

Content

Do not start working on this issue until Magento has approved PR magento/magento2#31484

Add documentation that describes GraphQL CORS support.

CORS support was originally a feature targeted for 2.4.2, but Magento did not merge that code into mainline. You can use the text in #7629 as a starting point, if the code in magento/magento2#31484 is compatible. (#7815 reverted those doc updates.)

Additional information

CORS support is a 2.4.3 feature. Create your PR off of the 2.4.3-develop branch.

As of the moment I'm writing this issue, there is no 2.4.3-develop branch. If the 2.4.3-develop branch exists when you start working on this issue, create your PR against it. Otherwise, create the PR against the 2.4.2-develop branch with the knowledge that it will need to be rebased.

If this iteration of CORS support does not warrant a new topic, then be sure to break the symlink using the rake symlink:replace_at path=src/guides/v2.4/graphql/send-request.md command.

[m2-assistant]

Hi @keharper. Thank you for your report.
To help us process this issue please make sure that you provided sufficient information.

Please, add a comment to assign the issue: @magento I am working on this

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[G-Arvind]

@magento I am working on this

[keharper]

@G-Arvind If you've started working on this issue, be aware that there is now a 2.4.3-develop branch.

[keharper]

This PR also contains documentation that was backed out.

magento/merchdocs#637

[keharper]

@G-Arvind A Magento development team is finishing the original PR. Do you want to submit a devdocs PR to cover the work that you completed, or would you prefer that I do all the work to complete this issue.

If you want to start the work and get the credit for it:

1. Add the content that was originally committed in GraphQL: Add section about CORS #7629, making any updates.
2. Break the symlink to src/guides/v2.4/config-guide/prod/config-reference-envphp.md by running rake symlink:replace_at path=src/guides/v2.4/config-guide/prod/config-reference-envphp.md.
3. Update the config-reference-envphp.md file. Where applicable, you can re-use the text provided in Add GraphQL CORS screen merchdocs#637.

Please let me know your decision by Thursday, February 25.