spring.js:25 Uncaught (in promise) ReferenceError: regeneratorRuntime is not defined

[Elvis]

I have an error:
spring.js:25 Uncaught (in promise) ReferenceError: regeneratorRuntime is not defined

[Eddie Ornelas]

i have the same issue :/

[Ayush Nawani]

same here

[Brandon Pereira]

I believe this is because this repo uses async/await. You need to add the babel-polyfill library to your build.