message: fix for node demo
diff: */
  // LIBRARY
  -export const TESTMODE = window && window.location && window.location.href.toLowerCase().indexOf("http://localhost:8000/") > -1;
  +export const TESTMODE = typeof window !== "undefined" && window.location && window.location.href.toLowerCase().indexOf("http://localhost:8000/") > -1;
  export const COMPRESS = true; // TEST: `compression` write prop
  // CONST
  