fix: updated cy.intercept to automatically parse more JSON MIME types

[flotwig]

• Closes Yield object instead of string in cy.wait when request content-type is valid JSON Mime type (not only application/json) #14763

User facing changelog

• BREAKING CHANGE: Updated cy.intercept to automatically parse more JSON MIME types, including 'application/vnd.api+json'.
  • This may remove the need to JSON.parse(req.body) or JSON.parse(res.body) manually in tests.

Additional details

How has the user experience changed?

PR Tasks

• Have tests been added/updated?
• Has the original issue or this PR been tagged with a release in ZenHub?
• [na] Has a PR for user-facing changes been opened in cypress-documentation?
• [na] Have API changes been updated in the type definitions?
• [na] Have new configuration options been added to the cypress.schema.json?

[cypress-bot]

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[cypress]

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Test summary

9327 • 0 • 118 • 3 • 1

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Run details

Project	cypress
Status	Passed
Commit	16bc149
Started	Feb 18, 2021 3:43 PM
Ended	Feb 18, 2021 3:54 PM
Duration	10:42 💡
OS	Linux Debian - 10.5
Browser	Multiple

View run in Cypress Dashboard ➡️

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Flakiness

	cypress/integration/retries.ui.spec.js		1
1	runner/cypress retries.ui.spec > opens attempt on each attempt failure for the screenshot, and closes after test passes

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[bahmutov]

I think this works, and since you added tests, should work

[bahmutov]

🚢