Is it possible to cancel/delete a dropped file before upload

Is there a cancel drop or remove file method when user drops a file. I want this so the code can perform a validation check before uploading the file.

No file, test, or entry point is named in the issue. Start by locating the React dropzone integration and its dropped-file handling, then check how validation and upload timing currently work. Done means the issue's requested pre-upload validation and file removal or cancellation behavior are defined and covered by the relevant tests.

Written by the indexing model from the issue text.