Wrong formatting of ~ during APIcall with Cypress

[trondag]

Current behavior

It looks like the first ~ (tilde) is formatted into %5Cx7e. It should not change it into anything. The next tilde is not touched, which is correct.

I just tested with 8.7.0 and 9.1.0, and this bug is present in 9.1.0

Desired behavior

Not convert the first tilde to this %5Cx7e

Test code to reproduce

cy.request({
    url: 'randomwebpage.com',
    method: "POST",
    body: {
        test: "~~~",
    },
})

Cypress Version

9.1.0

Other

The test code outputs Body: {"test":"\x7e~~"}, should output Body: {"test":"~~~"}

[janhesters]

We have the same, our Cypress tests are failing after the upgrade because of authentication schemes that are no longer working. (Our cookie serialization has a version number ~2.)

[chrisbreiding]

Duplicate of #19115