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  1. JDK
  2. JDK-5024379

REGRESSION: isActive call from Javascript no longer works in IE

    Details

    • Subcomponent:
    • Resolved In Build:
      b08
    • CPU:
      x86
    • OS:
      windows_xp

      Backports

        Description

        Name: gm110360 Date: 03/31/2004


        FULL PRODUCT VERSION :
        java version "1.4.2_04"
        Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_04-b05)
        Java HotSpot(TM) Client VM (build 1.4.2_04-b05, mixed mode)

        ADDITIONAL OS VERSION INFORMATION :
        Microsoft Windows [Version 5.2.3790]

        A DESCRIPTION OF THE PROBLEM :
        Calling typeof(document.applets[0].isActive) from javascript now results in the value being "undefined". Was fine in previous versions of the plugin.

        STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
        1. Create a basic applet (mine was just a label on the applet itself)
        2. The HTML is as follows:-
        <HTML>
        <HEAD>
        <TITLE>Applet Test</TITLE>
        <SCRIPT LANGUAGE="JavaScript">
        function resize()
        {
        if ( document.applets.length == 0 )
        {
        alert("Applets Length = 0");
        setTimeout("resize()", 200);
        return;
        }
        else if ( typeof(document.applets[0].isActive) == "undefined" )
        {
        window.open("error.html","_parent");
        return;
        }
        else
        {
        alert("Ok");
        }
        }
        window.onresize = resize;
        </SCRIPT>
        </HEAD>
        <BODY onResize="resize()">
        <APPLET CODE="TestApplet" NAME="testing" WIDTH=200 HEIGHT=200>
        </BODY>
        </HTML>
        3. After the applet loads, resize IE, the page will redirect to the error page

        EXPECTED VERSUS ACTUAL BEHAVIOR :
        EXPECTED -
        No page redirection
        ACTUAL -
        isActive was undefined, thus redirecting the page in the example above.

        REPRODUCIBILITY :
        This bug can be reproduced always.

        ---------- BEGIN SOURCE ----------
        import java.applet.Applet;
        import java.awt.*;

        public class TestApplet extends Applet
        {
          public TestApplet()
          {
            Label l = new Label("Testing");
            setLayout(new BorderLayout());
            add(l, BorderLayout.CENTER);
          }
        }

        plus the following HTML
        <HTML>
        <HEAD>
        <TITLE>Applet Test</TITLE>
        <SCRIPT LANGUAGE="JavaScript">
        function resize()
        {
        if ( document.applets.length == 0 )
        {
        alert("Applets Length = 0");
        setTimeout("resize()", 200);
        return;
        }
        else if ( typeof(document.applets[0].isActive) == "undefined" )
        {
        window.open("error.html","_parent");
        return;
        }
        else
        {
        alert("Ok");
        }
        }
        window.onresize = resize;
        </SCRIPT>
        </HEAD>
        <BODY onResize="resize()">
        <APPLET CODE="TestApplet" NAME="testing" WIDTH=200 HEIGHT=200>
        </BODY>
        </HTML>

        ---------- END SOURCE ----------

        CUSTOMER SUBMITTED WORKAROUND :
        No test to see if the applet is active... not possible in the full production case we are using.

        Release Regression From : 1.4.2
        The above release value was the last known release where this
        bug was known to work. Since then there has been a regression.

        (Incident Review ID: 245694)
        ======================================================================

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                • Assignee:
                  djayaramsunw Devananda Jayaraman (Inactive)
                  Reporter:
                  gmanwanisunw Girish Manwani (Inactive)
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                    Updated:
                    Resolved:
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