__/#/tests/... page errors 404 - page not found on Chrome 72+

Is this a Feature or Bug?

BUG

Current behavior:

Sometimes when I run all tests I have such error:

Important thing that I noticed If i remove tests “group_page.js” (check gif) it seems that the problem disappeared. “group_page.js” using different page: cy.visit(https://localhost:5002) for testing when the other tests that crashing using cy.visit(https://localhost:5000)

Check this gif, I had to run 3 times RUN ALL TESTS to make it work. Before always failed at login_page.js

I was trying hardcode url in cy.visit() (before I had url from cypress.json). The same result.

Steps to reproduce:

Run a few tests that include cy.visit(https://localhost:5002) for 1st test and cy.visit(https://localhost:5000) for 2nd test.

Versions

Cypress: 3.0.1 Windows 10 Chrome

[jennifer-shehane]

Current Workaround

Add the code below to your cypress/plugins/index.js file to fix the 404 issue:

module.exports = (on) => {
  on('before:browser:launch', (browser = {}, args) => {
    if (browser.name === 'chrome') { 
      // ^ make sure this is your browser name, you may 
      // be using 'canary' or 'chromium' for example, so change it to match!
      args.push('--proxy-bypass-list=<-loopback>')
      return args
    }
  })
}

I’ve opened a PR to fix this is Cypress here: https://github.com/cypress-io/cypress/pull/3049

[cypress-bot[bot]]

Released in 3.1.5.