src/vs/workbench/contrib/notebook/browser/contrib/viewportCustomMarkdown/viewportCustomMarkdown.ts/NotebookViewportContribution/_warmupDocumentNow
class NotebookViewportContribution:	private _warmupDocumentNow() {
		this._notebookEditor.viewModel?.viewCells.forEach(cell => {
			if (cell?.cellKind === CellKind.Markup && cell?.getEditState() === CellEditState.Preview && !cell.metadata.inputCollapsed) {
				// TODO@rebornix currently we disable markdown cell rendering in webview for accessibility
				// this._notebookEditor.createMarkupPreview(cell);
			} else if (cell?.cellKind === CellKind.Code) {
				this._renderCell((cell as CodeCellViewModel));
			}
		});
	}