title: Pass URL Parameters to HTML Form Google Web App
body: <p>I've gone through most of the relating questions regarding this and haven't found a solution that helps me (I've applied them one by one).  I have an HTML form that I am publishing as a web app through google.  I need to prefill an input box with that parameter.</p>
  
  <p>code.gs</p>
  
  <pre><code>function doGet() {
  return HtmlService
          .createTemplateFromFile('html')
          .evaluate();      
            }
  </code></pre>
  
  <p>html.html</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;/head&gt;
  &lt;style&gt;
  &lt;/style&gt;
  &lt;body&gt;
  &lt;form&gt;
    &lt;h1&gt;&lt;center&gt;Verification&lt;/center&gt;&lt;/h1&gt;
    Form ID:&lt;input type="number" name="formid" id="formid" class="formid"&gt;
  &lt;/form&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>As I said, I've tried many suggestions in similiar questions, but can't seem to find one that works.  The id is that I can type in my url + ?formid= and have that populate in the input.  How can I make this happen as described?</p>
  
  <p>Thank you!</p>