@tensorflow-models/mobilenet does not work under Node.js

Trying to use the @tensorflow-models/mobilenet package under Node.js throws the following exception:

2018-09-27 15:25:56.699190: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: SSE4.2 AVX AVX2 FMA (node:98265) Warning: N-API is an experimental feature and could change at any time. (node:98265) UnhandledPromiseRejectionWarning: Error: browserHTTPRequest is not supported outside the web browser without a fetch polyfill. at new BrowserHTTPRequest (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-core/dist/io/browser_http.js:46:19) at Object.browserHTTPRequest (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-core/dist/io/browser_http.js:247:12) at Object.<anonymous> (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:98:50) at step (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:42:23) at Object.next (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:23:53) at /Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:17:71 at new Promise (<anonymous>) at __awaiter (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:13:12) at Object.loadModelInternal (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/models.js:92:12) at Object.loadModel (/Users/kreeger/workspace/mn-test/node_modules/@tensorflow/tfjs-layers/dist/exports.js:16:21) (node:98265) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4) (node:98265) [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.

[daisy-ycguo]

I finally worked it out.

I use global.fetch = require('node-fetch'). In script.sh I change the loading mode script from file to https:

  mn.path = `https://storage.googleapis.com/tfjs-models/tfjs/mobilenet_v1_1.0_224/model.json`
  await mn.load()

Then I met with an error Error: Unknown feature TENSORLIKE_CHECK_SHAPE_CONSISTENCY.

And then , I bump tfjs to the latest release:

    "@tensorflow/tfjs": "^0.13.0",
    "@tensorflow/tfjs-node": "^0.1.19",

It works for me now.

[jthomas]

If people come across this issue, I found a (relatively) simple workaround using the node-fetch library from NPM. https://www.npmjs.com/package/node-fetch

const mobilenet = require('@tensorflow-models/mobilenet')
global.fetch = require('node-fetch')
const model = await mobilenet.load()