title: Cannot read property '_avast_submit' of undefined
body: <p>We're are using Sentry for our React App and faced this issue. Don't know where exactly this issue is coming from? This variable '_avast_submit' (or related named variable) is not at all used in either frontend or backend. In the screenshot it's mentioned anonymous.</p>
  
  <p>This issue had occurred for the user's who had used our React App, are from Mac and Windows OS specifically using Chrome browser.</p>
  
  <p><a href="https://i.stack.imgur.com/FDths.png" rel="noreferrer"><img src="https://i.stack.imgur.com/FDths.png" alt="Error on Sentry"></a></p>