Function downloadBlob

downloadBlob(blob: Blob, filename: string): void

Triggers a browser download of a Blob under the given filename using a transient object URL + anchor click (no downloads permission required). Works in the extension's document context.

Parameters

blob: Blob
The file contents to download.
filename: string
The suggested filename (e.g. chempal-export.xlsx).

Returns void

Example

downloadBlob(await buildResultsWorkbook(ctx), "chempal-export.xlsx");

Source

export function downloadBlob(blob: Blob, filename: string): void {
  const url = URL.createObjectURL(blob);
  const anchor = document.createElement('a');
  anchor.href = url;
  anchor.download = filename;
  document.body.appendChild(anchor);
  anchor.click();
  document.body.removeChild(anchor);
  URL.revokeObjectURL(url);
}