Error: only absolute urls are supported

[NeoCN]

Description

Just want to do some customize, but got Error: only absolute urls are supported when run npm test

Steps to reproduce the issue:

1. clone the repo, and change proxy field in package.json file to http://localhost:8080
2. run npm test

Describe the results you received:

 RUNS  src/middlewares/index.test.js
/Users/xxx/git/jaeger-ui/node_modules/react-scripts/scripts/test.js:20
  throw err;
  ^

Error: only absolute urls are supported
    at /Users/xxx/git/jaeger-ui/node_modules/node-fetch/index.js:54:10
    at new Promise (<anonymous>)
    at new Fetch (/Users/xxx/git/jaeger-ui/node_modules/node-fetch/index.js:49:9)
    at Fetch (/Users/xxx/git/jaeger-ui/node_modules/node-fetch/index.js:37:10)
    at Object.<anonymous>.module.exports (/Users/xxx/git/jaeger-ui/node_modules/isomorphic-fetch/fetch-npm-node.js:8:19)
    at getJSON (/Users/xxx/git/jaeger-ui/src/api/jaeger.js:32:68)
    at Object.fetchServiceOperations (/Users/xxx/git/jaeger-ui/src/api/jaeger.js:63:12)
    at Object.<anonymous>.exports.fetchServiceOperations.serviceName (/Users/xxx/git/jaeger-ui/src/actions/jaeger-api.js:40:33)
    at finalPayloadCreator (/Users/xxx/git/jaeger-ui/node_modules/redux-actions/lib/createAction.js:37:58)
    at actionCreator (/Users/xxx/git/jaeger-ui/node_modules/redux-actions/lib/createAction.js:44:39)
    at action (/Users/xxx/git/jaeger-ui/src/middlewares/index.js:38:315)
    at Object.<anonymous>.it (/Users/xxx/git/jaeger-ui/src/middlewares/index.test.js:31:476)
    at Object.asyncFn (/Users/xxx/git/jaeger-ui/node_modules/jest-jasmine2/build/jasmine-async.js:68:30)
    at resolve (/Users/xxx/git/jaeger-ui/node_modules/jest-jasmine2/build/queueRunner.js:38:12)
    at new Promise (<anonymous>)
    at mapper (/Users/xxx/git/jaeger-ui/node_modules/jest-jasmine2/build/queueRunner.js:31:21)
    at Promise.resolve.then.el (/Users/xxx/git/jaeger-ui/node_modules/p-map/index.js:46:16)
    at <anonymous>
error Command failed with exit code 1.

Describe the results you expected:
pass all tests

Additional information you deem important (e.g. issue happens only occasionally):
Revert the proxy field modification, and modify the name field to others, run npm test, and got the same error; but npm test is OK when nothing changed.

Additional environment details (Browser, etc.):
None

[tiffon]

@NeoCN Thanks for reporting.

I've seen this message before, but as a warning (still not good, but at least passing).

A couple of questions:

• Did you install with npm or yarn?
• Can you show the output of npm list | grep fetch?
• What version of npm and node are you using?

Thanks.

[NeoCN]

@tiffon Both npm and yarn have tried, npm test and yarn test got the same error.

output of npm list | grep fetch is

├─┬ isomorphic-fetch@2.2.1
│ ├─┬ node-fetch@1.7.3
│ └── whatwg-fetch@2.0.3
│ │ ├── isomorphic-fetch@2.2.1 deduped
│ └── whatwg-fetch@2.0.3 deduped

version

• node: 8.8.0
• npm: 5.4.2

[NeoCN]

@tiffon after #102 was merged, both npm test and yarn test passed after name and proxy field modification with warn message like

(node:25255) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): Error: only absolute urls are supported
(node:25255) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:25255) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 4): Error: only absolute urls are supported
(node:25255) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 6): Error: only absolute urls are supported
(node:25255) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 8): Error: only absolute urls are supported
(node:25255) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 10): Error: only absolute urls are supported

[tiffon]

@NeoCN Thanks for the great info. I was sort of able to reproduce the errors by running:

$ yarn test -- -i

The changes just merged into master should sort this issue out.