Uncaught TypeError: this.removeAttribute is not a function

[jared-niche]

• Operating System: MacOS Sierra 10.12.4 (16E195)
• Cypress Version: 0.19.2 (0.19.2)

Are you requesting a feature or reporting a bug?

Bug

Current behavior:

cy.visit('https://release.nicheacademy.com/v2/demo') produces Uncaught TypeError: this.removeAttribute is not a function.

It's being thrown from inside a minified 3rd party js file we're using so I'm not sure exactly what's going on. The error doesn't show up in the console when the page is loaded outside of the Cypress test environment.

Expected behavior:

no error

Additional Info (images, notes, stack traces, etc)

From Loren Norman @lorennorman:
@jared-niche it seems that zone.js is instrumenting XHRs the same way we are... which is conflicting we know that when we get around to rewriting our networking layer, this won't be a problem anymore but that work isn't scheduled as yet there may be a workaround in the short-term, but we haven't isolated one yet

[jared-niche]

We updated the version of zone.js we're using and the issue went away.