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by nmjohn 4237 days ago
It's not as nefarious as you think, I didn't dig into deep enough to know why they are using the empty iframe to submit forms to, but the send button submits an ajax POST request

  main.js:460
  $.ajax({
    type : "POST",
    url : pageContext + pathPrefix + "/turnOffiMessage",
    data:data,
    success : function(data, textStatus, jqXHR) {
    ...