message: domstream: filter out node not emitted error for nodes that isn't added to the DOM yet.
diff: @@ -46,7 +46,8 @@ export class StreamDOMTreeServer extends StreamDOMTree {
  this.initializeFromDOM(doc);
  this.mapData.setNodeData(this.rootId, "documentElementId",
  this.getRootElement().setOnMapWrapper(this.mapData, this));
  - } else if (n.nodeType !== 1 || !this.isFiltered(n as Element)) {
  + } else if (doc.documentElement.contains(n)
  + && (n.nodeType !== 1 || !this.isFiltered(n as Element))) {
  console.error("Target not emitted: ", mutation.type, n);
  }
  continue;
  