Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'query')

**Dexty** · Mar 31 '22, 05:35 AM

I'm trying to make a simple chrome extension that autofills a particular form but I keep getting

Code:

 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'query')

in the chrome extension error log and

Code:

 Uncaught TypeError: document.getElementsByName(...).setAttribute is not a function

in the console.
Here's the popuup.html:

Code:

<!DOCTYPE html>
<html>
  <head>
  	<meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Form 8949</title>
    <link rel="stylesheet" href="button.css">
  </head>
  <body>
    <div>
      <p>Fill Your IRS Form!</p> <br><br>
       <button id="populateIt" name="button">Populate Fields</button>   
    </div><br><br>

   <script src="popup.js"></script>
  </body>
</html>

manifest.json

Code:

{
  "name": "Automate IRS Form",
  "description": "AutoComplete Your IRS Form!",
  "version": "1.1",
  "action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Automate IRS Form"
  },
  "content_scripts": [{
  "css": ["button.css"],
  "js": ["popup.js"],
  "matches": ["<all_urls>"],
   "run_at": "document_end"
  }],
  "manifest_version": 3,
  "permissions": ["activeTab", "scripting"]

}

popup.js

Code:

document.addEventListener("click", async () => {
    let [tab] = await chrome.tabs.query({active: true, currentWindow:true}) 

    chrome.scripting.executeScript({ 
        target: {tabId: tab.id},
        function: () => {

           document.getElementsByName('txtDescrip1').setAttribute('value', '1.00 PUT ARCTURUS THERAPEUTIC$30 EXP 01/15/21');
           document.getElementsByName('passwd').setAttribute('value', '2823');
           document.getElementsByName('txtAcqDate1').setAttribute('value', '12/29/2020');
		   document.getElementsByName('txtSaleDate1').setAttribute('value', '1/4/2021');
		   document.getElementsByName('txtSalesPrice1').setAttribute('value', '24.35');
		   document.getElementsByName('txtBuyPrice1').setAttribute('value', '2823');
		   document.getElementsByName('txtCode1').setAttribute('value', '0');
		   document.getElementsByName('txtAmtOfAdj1').setAttribute('value', '0');
		   document.getElementsByName('txtCapGainOrLoss1').setAttribute('value', 'Short Term');	   
        }
    })
});