Point to the correct start and end indices

[zhenyanghua]

This fixes the chunk being sliced to its own copy.

[dfahlander]

Thanks @zhenyanghua for the PR!

I see the test did fail for this fix. The reason might be an error in the test itself.

To understand what issue is being fixed, please file an issue that describes it. Also, it would be great if you could add another promisedTest() in basic-tests.ts or edge-cases.ts that reproduces the issue with the existing code. You could do that in this ongoing PR and refer to it from your issue.

[zhenyanghua]

The edge tests failed on CI (even locally all tests pass) due to:

✖ chunkedExport (issue #854)
Firefox 85.0 (Linux x86_64)
Got error: NotReadableError: File could not be read
NotReadableError: File could not be read

From MDN, it says:

The file or directory cannot be read, typically due to permission problems that occur after a reference to a file has been acquired (for example, the file or directory is concurrently locked by another application).

I suspect it may be this operation that puts the file on lock:

https://github.com/dfahlander/Dexie.js/blob/b6d621ef25075f4f54cfdd923834bf939351cd93/addons/dexie-export-import/src/tson.ts#L60

@dfahlander I am puzzled now with this issue. Do you have any thoughts on the issue?

[dfahlander]

Closing. PR too old.

[dfahlander]

The changes in this PR has was tweaked and applied in #2094 and merged into master today.