message: Make dragging downloaded files into the Windows Explorer work.
diff: @@ -544,9 +544,6 @@ export class EmbeddedViewer extends ViewerElement implements Commandable,
  const handle = this.getBulkFileHandle();
  -this._log.debug("handle.getState() ", handle.getState()); // FIXME
  -this._log.debug(BulkFileState[handle.getState()]);
  -
  if (handle.getState() === BulkFileState.COMPLETED) {
  const metadata = handle.getMetadata();
  let {mimeType, charset} = guessMimetype(handle);
  @@ -569,9 +566,12 @@ this._log.debug(BulkFileState[handle.getState()]);
  filename = "";
  }
  filename = path.basename(filename);
  -
  + if (process.platform === "win32") {
  + ev.dataTransfer.setData("DownloadURL", mimeType + ":" + filename + ":" + handle.getUrl() + "/" + filename);
  + } else {
  ev.dataTransfer.setData("text/uri-list", handle.getUrl() + "/" + filename);
  }
  + }
  ev.dataTransfer.setDragImage(target, -10, -10);
  ev.dataTransfer.effectAllowed = 'move';
  