Maximum call stack size exceeded

[RaenonX]

Tesseract.js version (version number for npm/GitHub release, or specific commit for repo) v5.0.3

Describe the bug Unable to run. Console showing maximum call stack size exceeded.

To Reproduce Steps to reproduce the behavior:

const worker = await createWorker(
  'eng',
  OEM.DEFAULT,
  {
    errorHandler: (error) => {
      console.error('OCR Error', error);
    },
  },
);
await worker.setParameters({
  tessedit_char_blacklist: '$§',
  tessedit_char_whitelist: whitelistChars,
});

Images below show what's captured in F12. The 17435 and the regex part is my compiled code, I don't know where the octet-stream from, but it seems to

In the image above that shows the console output, 2 0-height errors show (under 2 jsdelivr, the red bar) up immediately after the worker starts. the octet-stream one shows up about a minute later.

---

Image below was the target image to recognize.

Expected behavior No error.

Device Version:

This doesn't work:

• OS + Version: SE3 iOS 16.7.1
• Browser: Safari/604.1

This works:

• OS + Version: Windows 11
• Browser: 119.0.2151.58 (Official build) (64-bit)

Additional context Add any other context about the problem here.

Note

• I understand that the whole thing might be vague, making it hard to debug, but I've tried what I can do...because my updates in a fast pace, I can't tell exactly when it started breaking.
• This only happens on old iPhone devices it seems. I don't have an old iPhone (this only happens on older iPhones) so it was tested by my friend.
• During my update from v5.0.0 to v5.0.3, I added the option of tessedit_char_whitelist and that's it (besides some hidden canvas for storing image data).

[Balearica]

I attempted to replicate this issue but was unable to do so. I used an iPhone SE 2020 v16.4, which was the closest device provided by Browserstack to what you describe. I recognized the provided image on the Tesseract.js demo site, and everything worked as intended.

I would have your friend try and recognize the image on the Tesseract.js demo site. This would help determine if the issue is specific to some settings used in your project, or if Tesseract.js consistently encounters issues on that particular device/software combination.

[Balearica]

I am closing this issue as the behavior could not be preproduced, including using the device/version at question. If somebody can provide an example of code that consistently fails with this message on iPhone, we can re-open.