Still cannot figure out how to use setSpellCheckerDictionaryDownloadURL in Electron 8.0.2

[heronhaye]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Issue Details

• Electron Version:
  • v8.0.2
• Operating System:
  • Arch Linux
• Last Known Working Electron version:
  • N/A

Expected Behavior

Electron to download dictionary files from custom mirror after setting setSpellCheckerDictionaryDownloadURL to the directory path containing dictionary files in hunspell_dictionaries.zip

Actual Behavior

It doesn't download the files, and spellchecking doesn't work.

To Reproduce

Please see sample code at https://github.com/heronhaye/electron-8-spellchecker-test. Specifically,

  win.webContents.session.setSpellCheckerDictionaryDownloadURL(
    'https://modalduality.keybase.pub/dictionaries/'
  )

Screenshots

Additional Information

@MarshallOfSound helped me figure out that I was using this function incorrectly before, but now I believe I am using it correctly, but still cannot get it to work. Is there an working example base path somewhere on the internet that I can test it on?

[MarshallOfSound]

@heronhaye Hey sorry I was just about to PR up some more documentation today, we're going through the same steps right now so we're finding these things as well.

TLDR is Chromium might request the lowercase version of the dictionary name i.e. en-us-8... instead of en-US-8..... You can either:

• Make the file server case insensitive
• Upload the lower case version of each file as well

I'll close this out with a docs PR shortly.

[MarshallOfSound]

We're also adding events to make these issues easier to debug in the future

[heronhaye]

@MarshallOfSound Excellent, I uploaded the lower-case version and it works perfectly. Thank you for the quick responses!