[Web] no available backend found [wasm] when importing onnxruntime-web/wasm

[jclaessens97]

Describe the issue

When importing onnxruntime-web with a general star import like import * as ort from 'onnxruntime-web';, it works like a charm. But since I only use wasm, I would expect to be able to import as import ort from 'onnxruntime-web/wasm; if I follow these docs.

I serve both ort-wasm-simd-threaded.jsep.wasm and ort-wasm-simd-threaded.wasm.

If I do so, I get following errors in the console:

I'm launching the inference session like this:

ort.env.wasm.wasmPaths = '/ort/';

const model = await ort.InferenceSession.create(
  SAM_ONNX_MODEL_URL,
  { executionProviders: ['wasm'] },
);

To reproduce

1. Install onnxruntime-web
2. import * as ort from 'onnxruntime-web';
3. It works
4. Change import to import ort from 'onnxruntime-web/wasm;
5. See error in console

Urgency

No response

ONNX Runtime Installation

Released Package

ONNX Runtime Version or Commit ID

1.19.2

Execution Provider

'wasm'/'cpu' (WebAssembly CPU)

[gyagp]

For wasm EP, you just need to import "onnxruntime-web". More details can be found at https://onnxruntime.ai/docs/get-started/with-javascript/web.html.

[fs-eire]

importing 'onnxruntime-web/wasm' will use a smaller sized .mjs file and it should work.

let me check the artifacts...

[fs-eire]

@jclaessens97 could you help to check whether the following works for you:

• import 'onnxruntime-web' instead of 'onnxruntime-web/wasm'
• install onnxruntime-web version 1.20.0-dev.20240902-b1ae43cbcb

[jclaessens97]

The first import import * as ort from 'onnxruntime-web'; works. It's the import * as ort from 'onnxruntime-web/wasm'; import that doesn't work.

In version 1.20 it's also the same.

[github-actions]

This issue has been automatically marked as stale due to inactivity and will be closed in 30 days if no further activity occurs. If further support is needed, please provide an update and/or more details.

[jclaessens97]

Any update? @fs-eire This still is the case for me.