phython language java integration

[jammytcs123123]

I am attempting to submit a HTML form that has some values created via javascript. However, when I submit the form those input fields lose their values in favor of empty strings. What can I do to prevent the fields from dropping their new values upon hitting the submit button?

Form Code:

Output:
<form id="post-form" class="save-form" method="POST" action="/posts" style="display: none">
  <input placeholder="Title" name="title" /><br>
  <input placeholder="Location" name="location" /></br>
  <input placeholder="Content" name="content" /><br>

  <input id="formlat" name="latitude" type="hidden" />
  <input id="formlng" name="longitude" type="hidden" />      
  <input name="user_id" type="hidden" value="<%= current_user.id %>" />

  <input type="submit" value="Submit"/>
</form>

Relevant Javascript Code:

Output:
var newlat = newmarker.getPosition().lat();
  var newlng = newmarker.getPosition().lng();

  document.getElementById("formlat").value = newlat;
  document.getElementById("formlng").value = newlng;

Setting default values, or not setting them, always produces the same result: the form submits with "" for those fields (or whatever was inside value=""). However, the console shows that those fields are correctly being filled with their lat/long up until I hit the submit button, where they revert to their default values (in this case ""). It is only in rails' logs that I can see the fields are blank in the actual POST.

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