Enable full HTML5 theme support

[Soare-Robert-Daniel]

Summary

Not having HTML5 support for scripts might impact some users who use specific plugins. More context about the problem here

Will affect visual aspect of the product

NO

Test instructions

• Make sure that the build is OK.

Check before Pull Request is ready:

• I have written a test and included it in this PR
• I have run all tests and they pass
• The code passes when running the PHP CodeSniffer
• Code meets WordPress Coding Standards for PHP, HTML, CSS and JS
• Security and Sanitization requirements have been followed
• I have assigned a reviewer or two to review this PR (if you're not sure who to assign, we can do this step for you)

Closes #4167

[Soare-Robert-Daniel]

@preda-bogdan, I see that for block themes, WP allows all options for HTML5 https://sourcegraph.com/github.com/WordPress/WordPress@46406afcc4cc938f44115c49ae775bad52039710/-/blob/wp-includes/theme.php?L4330:2

Should we do the same? Is there anything that you think we might have a conflict?

[preda-bogdan]

@Soare-Robert-Daniel I don't see any reason for conflicts, I think it is not present because it was not available and no explicit request was made. We can test and confirm it works as expected.

Also you would need to check that the layout and styles work as before, if not maybe limit the scope of the html5 feature as detailed here: https://developer.wordpress.org/reference/functions/add_theme_support/#html5 to only be available for script since the issue mentioned that as a requirement and not necessary full support.

[Soare-Robert-Daniel]

I looked at what changes it enables, and I think we will not be affected. Most of them are related to core shortcodes, which enable new HTML syntax like caption.

Reference: https://sourcegraph.com/search?q=context:global+repo:%5Egithub%5C.com/WordPress/WordPress$+current_theme_supports(+'html5'&patternType=standard&sm=1&groupBy=path

[pirate-bot]

Plugin build for 67923bc is ready 🛎️!

• Download build

[irinelenache]

@Soare-Robert-Daniel Tested the WP Popular posts compatibility and it works fine now, thank you 🚀

[pirate-bot]

🎉 This PR is included in version 3.8.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀