v7.4.0 No longer allows localhost as a RouteMatcher hostname

[lucitez]

Current behavior

cy.intercept({ hostname: 'localhost' }, (req) => { ... })

Results in

An invalid RouteMatcher was supplied to cy.intercept(). hostname must be a valid host name or domain name.

You passed: {
  "hostname": "localhost"
}

Desired behavior

As the docs suggest (https://docs.cypress.io/api/commands/intercept#Usage), I should be able to use 'localhost' as the hostname.

// spying, dynamic stubbing, request modification, etc.
cy.intercept('/users*', { hostname: 'localhost' }, (req) => {
  /* do something with request and/or response */
})

Test code to reproduce

cy.intercept({ hostname: 'localhost' }, (req) => { ... })

Versions

Introduced in 7.4.0 in this PR #16577

Worked in 7.3.0

[sainthkh]

Confirmed with the code below:

it('test', () => {
  cy.intercept('/users*', { hostname: 'localhost' }, (req) => {
    /* do something with request and/or response */
  })
})

@flotwig @jennifer-shehane

The code or doc should be fixed.

[flotwig]

@sainthkh the validation is incorrect, localhost should be permitted here.

[cypress-bot]

The code for this is done in cypress-io/cypress#17068, but has yet to be released.
We'll update this issue and reference the changelog when it's released.

[cypress-bot]

Released in 8.0.0.

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