Cypress: Cypress Uncaught SyntaxError: Unexpected token <

[hakunamatata0829]

I have getting error after run this code.

sample_spec.js

describe('Vist testing', function() {
    it('finds the content "type"', function() {
      cy.visit('http://localhost:3000') 

      cy.contains('Sign in')

    })
  })

error screen is following

Please help .. who knows this solution?

[jennifer-shehane]

Can you try opening your devtools to see if there are any errors printed there? This looks to be originating from your application code.

Generally I see this error in my applications when an XHR request responds with rather than what it's supposed to.

[hakunamatata0829]

I found the issue reason.
My index.html includes jquery.js and it happen this issue.

I comment or remove the jquery line in index.html and rerun it.

Then, its issue goes away. :100:
I think my jquery has some issue.

Thanks @jennifer-shehane for your concern.

[Karuhanga]

If someone else runs into this in the future, mine was down to trying to load a non existent JS file(from my index page).

Adding this to the test file got me on the right track;

Cypress.on('uncaught:exception', (err, runnable) => {
  console.log(err);
  return false;
})