theabbie

// opens file dialog waits till user selects file and return dataurl of uploaded file

async function pick() {
  var filepicker = document.createElement("input");
  filepicker.setAttribute("type","file");
  filepicker.click();
  return new Promise((resolve,reject) => {
  	filepicker.addEventListener("change", e => {
  	  var reader = new FileReader();
      reader.addEventListener('load', file => resolve(file.target.result));