src/vs/workbench/contrib/webview/browser/webviewElement.ts/WebviewElement/reload
class WebviewElement:	public reload(): void {
		this.doUpdateContent(this.content);

		const subscription = this._register(this.on(WebviewMessageChannels.didLoad, () => {
			this._onDidReload.fire();
			subscription.dispose();
		}));
	}