Correct syntax to pass HTML form data to Apps Script client side

问题

my code is meant to take an HTML form submitted in a dialog window and input it as a row in a sheet. It works perfectly for the 'Owner' (i.e. on my account) but works quite patchily for Editors (the people I share it with)-

It doesn't execute all of the code for Editors- i.e. It won't open the 2nd dialog box in the testing143() function (which is called onSuccess of the html)

It also doesn't submit properly for some users - simply hanging on the Submit button...

Is my syntax correct? I notice from this post that there may need to be extra functions ( .getClients() ?)

Here is my code - as i said, works perfectly when I was testing myself. Would be incredibly helpful for any help!

Apps Script (code runs when ShowDialog() button is pressed):

function showDialog() {
  var html = HtmlService.createHtmlOutputFromFile('Index')
      .setWidth(1100)
      .setHeight(550);
  SpreadsheetApp.getUi() // Or DocumentApp or SlidesApp or FormApp.
      .showModalDialog(html, 'Submit new Tellworth Idea');
}


function testing143(obj){
  var ss0 = SpreadsheetApp.getActiveSpreadsheet().getSheetByName('IdeaBlotter'); 
  var values = [[obj.date,
                obj.Ticker.toUpperCase(),
                obj.Analyst,
                obj.Type,
                obj.Idea.charAt(0).toUpperCase()+obj.Idea.slice(1),
                obj.STRating,
                obj.LTRating,
                obj.Follow]]
  ss0.insertRows(6);
  var sourceRange = ss0.getRange(7,1,1,8);
  var targetRange = ss0.getRange(6,1,1,8);
  sourceRange.copyTo(targetRange, SpreadsheetApp.CopyPasteType.PASTE_NORMAL);
  ss0.getRange(6,1,1,8).setValues(values); 
  
  var html2 = HtmlService.createHtmlOutputFromFile('Dialogue2')
      .setWidth(200)
      .setHeight(100);
  SpreadsheetApp.getUi() // Or DocumentApp or SlidesApp or FormApp.
      .showModalDialog(html2, 'Submitted');
      
  return "Thank you for your idea!";
}

And here is the JS within the HTML file (i have left out the form ofc):

<form id="myForm" onsubmit="myButton.disabled = true;testing143()">
.
.
.
                        <button type="submit" class="btn btn-primary btn-block" name="myButton">Submit</button>                      
                    </form>
                    <div id="output"></div>
                </div>
            </div>      
        </div>
        
        

  <script>
  function success(msg) {
    alert(msg);
  }

  function testing143(){
    var form = document.getElementById("myForm").elements;
    var obj ={};
    for(var i = 0 ; i < form.length ; i++){
        var item = form.item(i);
        if (item.checked) obj[item.name] = item.value;
        else if (i < 5 || i > 14)
        obj[item.name] = item.value;
    }
    google.script.run.withSuccessHandler(success).testing143(obj);
  }
  </script>
  </body>
</html>

来源：https://stackoverflow.com/questions/62701249/correct-syntax-to-pass-html-form-data-to-apps-script-client-side