Jest SecurityError: localStorage is not available for opaque origins

Question

When I want to run my project with the command npm run test, I get the error below. What is causing this?

FAIL
● Test suite failed to run

SecurityE         


        

Answer 1

This popped up with me when integrating enzyme with jest. The Github Issue Discussion suggests the same as noted above, namely adding

"testURL": "http://localhost/"

to the jest config. However, it's good to know that this is triggered also by enzyme. For me it was React v15 and the v15 adapter.