code: function collectCompatNotes() {
  
    function pushNotes(supportEntry, browserName) {
      // collect notes
      if (supportEntry.hasOwnProperty('notes')) {
        let notes = supportEntry['notes'];
        if (Array.isArray(notes)) {
          for (let note of notes) {
            if (notesArray.indexOf(note) === -1) {
              notesArray.push(note);
            }
          }
        } else {
          if (notesArray.indexOf(notes) === -1) {
            notesArray.push(notes);
          }
        }
      }
      // collect flags
      if (supportEntry.hasOwnProperty('flag')) {
        let flagNote = writeFlagsNote(supportEntry, browserName);
        if (notesArray.indexOf(flagNote) === -1) {
          notesArray.push(flagNote);
        }
      }
      // collect alternative names
      if (supportEntry.hasOwnProperty('alternative_name')) {
        let altNameNote = writeAlternativeNameNote(supportEntry.alternative_name);
        if (notesArray.indexOf(altNameNote) === -1) {
          notesArray.push(altNameNote);
        }
      }
    }
    for (let row of features) {
      let support = Object.keys(row).map((k) => row[k])[0].support;
      for (let browserName of Object.keys(support)) {
        if (Array.isArray(support[browserName])) {
          for (let entry of support[browserName]) {
            pushNotes(entry, browserName);
          }
        } else {
          pushNotes(support[browserName], browserName);
        }
      }
    }
    return notesArray;
  }
docs: /*
  Iterate into all "support" objects, and all browsers under them,
  and collect all notes in an array, without duplicates.