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 may sound silly, but for me, the problem was caused because I had mistakenly installed random packages with npm update. I was running npm install and then npm update but I should have only ran npm install. I fixed the problem by deleting node_modules directory and running npm install again.