JSDelivr CDN not accessible in China about tesseract.js HOT 8 OPEN

unpkg support langPath?

Here is a working example that uses unpkg for all 3 resources: corePath/langPath/workerPath.

  const lang = 'eng';
  const langPath = `https://unpkg.com/@tesseract.js-data/${lang}/4.0.0_best_int`;

  // A worker is created once and used every time a user uploads a new file.  
  const worker = await Tesseract.createWorker(lang, 1, {
      corePath: 'https://unpkg.com/tesseract.js-core@v5',
      workerPath: 'https://unpkg.com/tesseract.js@v5/dist/worker.min.js',
      langPath: langPath,
      logger: function(m){console.log(m);}
    });

This loads the LSTM-only data, so will only work with oem set to 1 (the default). To use the Legacy model, you would replace 4.0.0_best_int with 4.0.0. That data is significantly larger, so do not do that unless you are actually using the Legacy model.

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Users may use them in browsers but without own site, for example, userscript: https://greasyfork.org/scripts/482236/code

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If you do not want to host these files yourself, you can set workerPath/langPath/corePath to an alternative CDN. For example, you could try unpkg.

I agree that having a default CDN that does not support China is not ideal, and would be open to adding some fallback for the default CDN in the future. However, if individual developers want to be sure that mainland China is supported in their applications, I believe that the existing options in Tesseract.js do allow them to do that.

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Convert *.traineddata.gz files to pure JavaScript could solve this issue.

*.js files could save and sync to anywhere.

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@ivysrono There are 3 types of files loaded from the CDN by default for browser (workerPath, langPath, corePath) and 1 type of files loaded from the CDN for Node.js (langPath). For all of these files, the JSDelivr CDN is simply the default value--you do not need to use it. All of these files can be hosted on your site (for browser) or local file system (for Node.js), and workerPath, langPath, corePath can be changed to point to those. This is explained in the following document.

https://github.com/naptha/tesseract.js/blob/master/docs/local-installation.md

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unpkg support langPath?

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Thank you very much, I will try.

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@Balearica - just wanted to say thank you for saving me some time with that comment. Cheers 👍

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