Closed Bug 275473 Opened 20 years ago Closed 20 years ago

Reloading a page - checkboxes change state

Categories

(Firefox :: General, defect)

Product:
Firefox
Component:
General
Version:
1.0 Branch
Platform:
x86
Windows XP
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED WORKSFORME

People

(Reporter: leighprotect-bugzilla, Assigned: bugzilla)

Details

Using the following code:
- Load the page and both checkboxes should be checked
- Hit the reload button and the second checkbox will now be unchecked
- Also occurs if you go back to the page after submitting the form

This is a simplified version of a page I'm writing, the main problem for me is
that if a user goes back to the page, their previous selections are lost.

---------------------------------

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title>Checkbox/Javascript Bug Page</title>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <script language="javascript1.2" type="text/javascript">
<!--
function disableBox() {
  var theForm = document.getElementById("test_form");

  theForm.elements["cb_B"].disabled = !theForm.elements["cb_A"].checked;
  if (theForm.elements["cb_B"].disabled)
    theForm.elements["cb_B"].checked = false;
}
-->
  </script>
</head>
<body onload="disableBox()">
<form id="test_form" method="post"
action="http://www.mozilla.org/products/firefox/">
<table>
  <tr>
    <th>Option A</th>
    <td><input type="checkbox" name="cb_A" value="a" checked
onclick="disableBox()" /></td>
  </tr>
  <tr>
    <th>Option B (depends on option A)</th>
    <td><input type="checkbox" name="cb_B" value="b" checked
onclick="disableBox()" /></td>
  </tr>
  <tr>
    <td colspan="2">
      <button type="submit">Continue</button>
    </td>
  </tr>
</table>
</form>
</body>
</html>
Note - this works under ie.

The code within the if statement is never reached on a page reload to set cb_B
unchecked (using an alert statement to debug).

Also, if the line:

  theForm.elements["cb_B"].disabled = !theForm.elements["cb_A"].checked;

is removed, the problem doesn't occur, but the page doesn't function either! :)
 Interestingly, the removed line doesn't do anything to set the checked
attribute of cb_B.


I see what you mean in Firefox 1.0, but in either a nightly trunk build of
Firefox or Moz 1.8a6, it works just like it should, so it's already fixed,
somewhere after the stable-but-stale branch of the backend code for 1.0. Next
release should do the right thing, even though that's not much comfort now.
Status: UNCONFIRMED → RESOLVED
Closed: 20 years ago
Resolution: --- → WORKSFORME
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