Work causing DataCloneError

[markzouodaia]

Hi, I googled this issue seems like it's supposed to be solved previously. I'm still running into it with the latest 5.0.2 build and 4.6.0 build when I turn on the worker. I'm using it in React.

Unhandled Rejection (DataCloneError): Failed to execute 'postMessage' on 'Worker': (value, colNum) => { if (value && dataset.dataColumns && dataset.dataColumns[colNum] && dataset.dataC...... } could not be cloned.

Papa.parse(file, { worker : true, transform : (value, colNum) =>{ return someTransform(value); } }, step : (results, parser) =>{ }, chunk : (results, parser) =>{ }, error : (err, file, inputElem, reason) =>{ }, complete : (result, file) =>{ }, }) })

[pokoli]

This is probably because you used the transform function. Could you confirm that removing them (or removing the usage of workers) solves the problem for you?

[hoodwink73]

Hello friends

Any updates on this. Indeed using transform function for me causes DataCloneError. Removing the transform function fixes it.

[sm-Fifteen]

The documentation should probably indicate somewhere that worker and transform are mutually exclusive, or log a warning that transform will be ignored if the processing is being done by a worker.

[KoalaBear84]

Sadly having the same issue. And found a similar issue #623