Bug Tracker

Opened 10 years ago

Closed 9 years ago

#6337 closed bug (fixed)

Button click within form causes submit event even though return false is there

Reported by: margieroginski Owned by: dmethvin
Priority: undecided Milestone: 1.4.3
Component: event Version: 1.4.2
Keywords: submit event return false Cc:
Blocked by: Blocking:

Description

I have a small test case below where I create a button inside a form and set its onclick hander to my js function, show_input(), followed by a "return false", like this:

Immediately following that is a one line script that clicks the button. 

	    <button id="testbutton1" onclick="show_input(); return false;">
	       Test
	    </button>
	    <script type="text/javascript">
              $('#testbutton1').click();
	    </script>

In jquery 1.3.2, when the .click() occurs, it calls show_input() and no submit event occurs aftwards, due to the return false. But in in Jquery 1.4.2, it calls show_input() and then the submit event fires (it does a GET), as if the return false is not there.

If I manually click the button, I do not see the submit event, so this seems to be somehow related to the click being inline.

Here is the exact html that can be used to replicate it. 

<html>
  <head>
    <script src="/site_media/js/jquery-1.3.2.js" type="text/javascript"></script>
    <script type="text/javascript">
      function show_input() {
        console.log("hello, world");
      }
    </script>
  </head>

  <body>
  <div id="container">
      <form>
      <div class="taskform_row_description form-row">
	    <button id="testbutton1" onclick="show_input(); return false;">
	       Test
	    </button>
	    <script type="text/javascript">
              $('#testbutton1').click();
	    </script>
      </div>
      </form>
  </div>
  </body>
</html>

This seems to me to be a bug since it is very incompatible with previous behavior...

Thanks, Margie

Change History (4)

comment:1 Changed 10 years ago by dmethvin

Component: unfiled → event

comment:2 Changed 9 years ago by dmethvin

Owner: set to dmethvin

It looks like the problem is in jQuery.event.trigger; the code to run inline scripts sets event.result to false but does not stopPropagation or preventDefault. I've taken the ticket and will put together a patch.

comment:4 Changed 9 years ago by john

Priority: → undecided
Resolution: → fixed
Status: new → closed

Fixed ​http://github.com/jquery/jquery/commit/adff8e45e255409e8f78a3347dea01bdbee0a53d

We only need to call preventDefault in this case.

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