Refactor ajax-form.js replaceDocument function

[salicius]

Hi, I want to rebuild the ajax-form.js cause it replaces the entire file, but I need to replace only a specific tag, so I edited the replaceDocument function. My code works on first click but if the user click again on OPTIONS button it does the call again (instead doing nothing), goes on path "/?" and restore the content of the base template. How can i fix it ?

var actualContent = document.getElementById("my-tag-id").innerHTML;

function replaceDocument(docString) {
  var response = new DOMParser().parseFromString(docString, "text/html");
  var newContent = response.getElementById("my-tag-id").innerHTML;
  var actualContent = newContent;
}