fix: head content reset, fix #19721

[Akryum]

• Closes @cypress/vue - Global component does only include CSS in first test #19721

User facing changelog

Fixed Vue component style missing after the first test.

Additional details

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has the original issue (or this PR, if no issue exists) been tagged with a release in ZenHub? (user-facing changes only)
• Has a PR for user-facing changes been opened in cypress-documentation?
• Have API changes been updated in the type definitions?
• Have new configuration options been added to the cypress.schema.json?

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[ZachJW34]

@Akryum Thanks for the contribution! Can you rebase your branch so as to only include the vue change? Might be easier to checkout latest master and copy your changes over.

[ZachJW34]

Looks good!

[JessicaSachs]

LGTM, thank you. This was missed when we changed how we clean up the document.

[ZachJW34]

CI is not working correctly for external contributors. I believe it is fixed on develop so I've created a PR getting master up to date. Once we get that merged we can get a new build for this PR

[Akryum]

@ZachJW34 I see there are some (probably flacky) errors for this run: https://circleci.com/gh/cypress-io/cypress/1499006?utm_campaign=vcs-integration-link&utm_medium=referral&utm_source=github-build-link

[ZachJW34]

@Akryum going to merge, the flake you are seeing is due to a bug with how we run our tests and you being an external contributor.