ONNX: Unexpected end of file

[lutzroeder]

Please help by providing information how to reproduce this issue:

• Add steps how the file that caused this issue was created
• Attach the model file below to help investigate what is causing this issue.

[jerly-hjzhou]

I used the ONNX model generated by the python script in the attachment, which passed the check using onnx.checker.check_model, but it cannot be opened correctly with Netron

export_levit.zip

[lutzroeder]

@jerly-hjzhou running the script does not reproduce the issue. Can you share the file that fails to load or a screenshot of the end of the file in a hex editor?

[fefe982]

When I use netron foo.onnx to start a server with v7.2.7, and then view it in Firefox, I met a similar issue.

It sometimes produces "Unexpected end of file", and sometimes "view.View is not constructor", or "window.host is undefined", or a black and white (no color) graph, or "view.Sidebar is not a constructor", or "base.Tlemetry is not a constructor", or load successfully. It can load successfully after several reloads.

I suspect it is a synchronizing issue, that when a js object is needed, it is not fully loaded. But I have no proof.

[lutzroeder]

@fefe982 can you help investigate this issue?

• If you run with netron --verbosity debug ..., does it show any errors in the log when this happens?
• Are you using --browse or copy pasting the URL into the browser?
• What operating system or browser are you using?
• Are you running both the server and browser on the same machine, e.g. localhost?

[fefe982]

@fefe982 can you help investigate this issue?

* If you run with `netron --verbosity debug ...`, does it show any errors in the log when this happens?

Only a bunch of 200. But there are some errors in the browser's console:

EvalError: call to eval() blocked by CSP
    r moz-extension://3638b928-526f-44b7-9d76-ec56f09183be/build/detector.js:1
    <anonymous> moz-extension://3638b928-526f-44b7-9d76-ec56f09183be/build/detector.js:1
    <anonymous> moz-extension://3638b928-526f-44b7-9d76-ec56f09183be/build/detector.js:1
    <anonymous> moz-extension://3638b928-526f-44b7-9d76-ec56f09183be/build/detector.js:1
    inject resource://gre/modules/ExtensionContent.sys.mjs:581
    AsyncFunctionNext self-hosted:852
Content-Security-Policy: The page’s settings blocked the loading of a resource at eval (“script-src”).
Source: ;(function n(e){let t=1e3,n=10;function … [127.0.0.1:8080](http://127.0.0.1:8080/)
Uncaught SyntaxError: missing } in compound statement [grapher.js:642:27](http://127.0.0.1:8080/grapher.js)note: { opened at line 641, column 72[grapher.js:641:72](http://127.0.0.1:8080/grapher.js)
Uncaught Error: Module './grapher' not found.
    require http://127.0.0.1:8080/index.js:47
    <anonymous> http://127.0.0.1:8080/view.js:13
[index.js:47:15](http://127.0.0.1:8080/index.js)
    require http://127.0.0.1:8080/index.js:47
    <anonymous> http://127.0.0.1:8080/view.js:13
Uncaught TypeError: view.View is not a constructor
    <anonymous> http://127.0.0.1:8080/index.js:120
    next http://127.0.0.1:8080/index.js:60
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    preload http://127.0.0.1:8080/index.js:78
    <anonymous> http://127.0.0.1:8080/index.js:114
    EventListener.handleEvent* http://127.0.0.1:8080/index.js:110
[index.js:120:31](http://127.0.0.1:8080/index.js)
    <anonymous> http://127.0.0.1:8080/index.js:120
    next http://127.0.0.1:8080/index.js:60
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    (Async: EventListener.handleEvent)
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    (Async: EventListener.handleEvent)
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    next http://127.0.0.1:8080/index.js:73
    loadHandler http://127.0.0.1:8080/index.js:30
    (Async: EventListener.handleEvent)
    require http://127.0.0.1:8080/index.js:40
    next http://127.0.0.1:8080/index.js:66
    preload http://127.0.0.1:8080/index.js:78
    <anonymous> http://127.0.0.1:8080/index.js:114
    (Async: EventListener.handleEvent)
    <anonymous> http://127.0.0.1:8080/index.js:110

The error mentioned grapher.js. I checked grapher.js in the network panel of the brower's Developer Tools, I can only see partial response. The content of the js is not fully transfered. The Content-Length says it has 25kB, but only 22kB is transferred.

The Transferred column of several items (including grapher.js) has a (raced) mark ，e.g. 22.55 kB (raced) .

When accessing single item, the full content can be transferred, and there is not (raced) mark.

* Are you using `--browse` or copy pasting the URL into the browser?

I'm typing the URL in the browser.

* What operating system or browser are you using?
* Are you running both the server and browser on the same machine, e.g. `localhost`?

The environment is a bit complicated.

netron is run in a container, the container is in a remote Linux machine. I'm running VS Code on a local Windows machine, and used the port forwarding function of Remote SSH / Remote Container of VS Code to access it form the Windows machine. The browser is firefox.

[fefe982]

After several tests and searching the web, the raced mark should be irrelevant. It is about the use of cache vs accessing the web ref . And I can get partial content with or without the raced mark.

The partial content problem can happen on any file. When only partial content of the onnx file is received, I got Unexpected end of file.

[jerly-hjzhou]

It's so strange, I was able to open this model today. I thought you had resolved this issue, haha.

[lutzroeder]

The content of the js is not fully transfered. The Content-Length says it has 25kB, but only 22kB is transferred.

@fefe982 any insights why this might be happening or how to reproduce it?

[octavflorescu]

I have encountered the same error, and the reason in my case was pretty straight forward: model was generated on server, i was copying it to local machine, and i did not wait for the transfer to finish.

[lutzroeder]

Please attach the model file to reproduce this issue or steps how it was created.