fonteditor-core reports "Error: check sum out of bound"

I’m trying to use this plugin in a vuejs application with a minimal webpack config:

    new FontminPlugin({
      autodetect: true,
      glyphs: [],
    }), 

When the webpack rule is triggered however, I’m getting the following error:

 ERROR  Error: check sum out of bound
Error: check sum out of bound
    at checkSumArrayBuffer (/opt/src/Frontend/node_modules/fonteditor-core/ttf/util/checkSum.js:13:15)
    at checkSum (/opt/src/Frontend/node_modules/fonteditor-core/ttf/util/checkSum.js:80:16)
    at /opt/src/Frontend/node_modules/fonteditor-core/ttf/ttfwriter.js:185:26
    at Array.forEach (<anonymous>)
    at TTFWriter.write (/opt/src/Frontend/node_modules/fonteditor-core/ttf/ttfwriter.js:174:24)
    at TTFWriter.write (/opt/src/Frontend/node_modules/fonteditor-core/ttf/ttfwriter.js:231:24)
    at minifyTtf (/opt/src/Frontend/node_modules/fontmin/plugins/glyph.js:97:29)
    at Through2._transform (/opt/src/Frontend/node_modules/fontmin/plugins/glyph.js:153:27)
    at Through2.Transform._read (/opt/src/Frontend/node_modules/fontmin/node_modules/readable-stream/lib/_stream_transform.js:159:10)
    at Through2.Transform._write (/opt/src/Frontend/node_modules/fontmin/node_modules/readable-stream/lib/_stream_transform.js:147:83)
    at doWrite (/opt/src/Frontend/node_modules/fontmin/node_modules/readable-stream/lib/_stream_writable.js:313:64)
    at writeOrBuffer (/opt/src/Frontend/node_modules/fontmin/node_modules/readable-stream/lib/_stream_writable.js:302:5)
    at Through2.Writable.write (/opt/src/Frontend/node_modules/fontmin/node_modules/readable-stream/lib/_stream_writable.js:241:11)
    at PassThrough.ondata (/opt/src/Frontend/node_modules/readable-stream/lib/_stream_readable.js:619:20)
    at PassThrough.emit (events.js:315:20)
    at PassThrough.Readable.read (/opt/src/Frontend/node_modules/readable-stream/lib/_stream_readable.js:469:26)

Note that I’m using fontmin in version 2.7.0 as I’m dependent on webpack 4 due to other modules in the project.

Is there anything I’m missing? I couldn’t find reports on similar issues.

[zonque]

Thanks a lot for working on this! I can confirm that the error is gone with 3.0.1, and the result is correct when glyps are manually specified. However, the auto-detection still doesn’t work for me.

[zonque]

How specifically does it not work? The font and stylesheet from your example was directly added to our test suite using autodetect, so I cannot reproduce an exception being thrown.

No exception is being thrown, but from what I can see, the glyphs that are generated in the reduced file don’t match the ones in the input. I’ve checked the generated woff file with FontDrop, and while the number of glyphs seem to match, their codes don’t.

Bot sure if I’m holding it right tho. Which tools would you recommend to check?