Cypress.env() return value is garbled when multibyte string in 3.5.0

[aomoriringo]

Current behavior:

Return value of Cypress.env() is garbled when cypress.env.json includes multibyte string.

Desired behavior:

Return value of Cypress.env() is not garbled.

On cypress 3.4.1, I got desired behavior.

Steps to reproduce: (app code and test code)

• Create following files

// cypress/integration/garbled_test.js
const myenv = Cypress.env()
describe('garbled test', function() {
  it('garbled test', function() {
    expect(myenv.alphabet).to.equal('aiueo')
    expect(myenv.multibyte).to.equal('あいうえお')
  })
})

cypress.env.json

{
  "alphabet": "aiueo",
  "multibyte": "あいうえお"
}

あいうえお is Japanese characters.

• Execute $ npx cypress open and select garbled_test.js

Versions

• Cypress 3.5.0
• macOS Mojave

[jennifer-shehane]

Thank you so much for providing a full reproducible example. I also see this behavior with the code provided. I can also confirm that this is a regression introduced in 3.5.0

3.4.1

3.5.0

I have confirmed that this also takes place when setting the Environment Variable in the following ways:

• Via cypress.env.json
• Via env object in cypress.json
• Via CYPRESS_multibyte=あいうえお cypress open in terminal
• Via --env multibyte=あいうえお in terminal
• Via plugins file, setting config

The env var shows up correctly in the configuration panel in the Desktop GUI.

[bahmutov]

I have added a failing test in branch unicode-env-variables see cypress-io/cypress-example-recipes#353

[bahmutov]

The env variables are incorrectly encoded in the runner block, which comes from runner/static/index.html

Runner.start(document.getElementById('app'), "{{{base64Config}}}")

[bahmutov]

Added logging env variables on the server side

cypress:server:runner serving runner index.html with config { version: '3.5.0', platform: 'darwin', arch: 'x64', projectName: 'server-communication__env-variables', env: { 'my-var': 'ok', 'unicode-var': 'привет', CACHE_FOLDER: '' } }