Fix bug where cy.request does not work with followRedirect: false and Set-Cookie

[flotwig]

• Closes cy.request does not work with followRedirect: false and Set-Cookie in 3.5.0 #5654

User facing changelog

• Fixed a regression introduced in v3.6.1 where cy.request with followRedirect: false would fail if a Set-Cookie header was present on the response. Fixes cy.request does not work with followRedirect: false and Set-Cookie in 3.5.0 #5654

Additional details

• was a simple error, currentUrl was undefined but could still end up being used in this edge case

How has the user experience changed?

N/A

PR Tasks

• Have tests been added/updated?

[cypress-bot]

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User Experience

• The feature/bugfix is self-documenting from within the product.
• The change provides the end user with a way to fix their problem (no dead ends).

Functionality

• The code works and performs its intended function with the correct logic.
• Performance has been factored in (for example, the code cleans up after itself to not cause memory leaks).
• The code guards against edge cases and invalid input and has tests to cover it.

Maintainability

• The code is readable (too many nested 'if's are a bad sign).
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Quality

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• Tests are testing the code’s intended functionality in the best way possible.

Internal

• The original issue has been tagged with a release in ZenHub.

[cypress]

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Test summary

3504 • 0 • 45 • 0

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Run details

Project	cypress
Status	Passed
Commit	b0e1e5d
Started	Nov 14, 2019 8:36 PM
Ended	Nov 14, 2019 8:40 PM
Duration	03:51 💡
OS	Linux Debian - 9.8
Browser	Multiple

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