Question

我在我的扩展程序中的html页面添加了一个applet。以下代码行引发了一个异常：

    try {
        document.Applet.isActive();
    }
    catch(e) {
        setTimeout(doingSomeThing(),200);
        return;
    }

错误：尝试在没有invokeDefault方法的对象上调用默认方法

过了一会儿：

TypeError：document.Applet.isActive不是函数

我正在测试不同操作系统和firefox版本的扩展以进行部署。在运行Java 1.6.0_22的Mac OS X计算机上的Firefox 4.0上发生了上述错误。

它在Mac OS X上使用Java版本1.6.0_24进行了测试，并且运行正常。

有关于此的任何想法吗？

更新：我在1.6.0_22附加了Java控制台输出

security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws,com.sun.deploy
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws,com.sun.deploy
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.definition value null
security: property package.definition new value com.sun.javaws
security: property package.definition value com.sun.javaws
security: property package.definition new value com.sun.javaws,com.sun.deploy
security: property package.definition value com.sun.javaws,com.sun.deploy
security: property package.definition new value com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.access value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.access new value sun.,com.sun.xml.internal.ws.,com.sun.xml.internal.bind.,com.sun.imageio.,apple.,com.apple.mrj.,com.apple.jdirect.,com.apple.audio.jdirect.,quicktime.internal.,com.sun.medialib.mlib.,com.sun.javaws,com.sun.deploy,com.sun.jnlp,org.mozilla.jss
security: property package.definition value com.sun.javaws,com.sun.deploy,com.sun.jnlp
security: property package.definition new value com.sun.javaws,com.sun.deploy,com.sun.jnlp,org.mozilla.jss
basic: Told clients applet is started
Java Plug-in 1.6.0_22
Using JRE version 1.6.0_22-b04-307-10M3261 Java HotSpot(TM) 64-Bit Server VM User home directory = /Users/tomrTrace level set to 5: all… completed.
basic: Starting applet teardown
basic: Finished applet teardown
basic: Told clients applet is started

谢谢，

Answer 1

查看Detect if an Applet is ready在一些随机点上将一行JS抛入HTML中会更复杂。

如果查看该文档并未为您排序问题，我建议您准备＆amp;发布SSCCE，以及指向我们可以看到applet工作/失败的地方的网址。

Firefox 4中的Applet问题

1 个答案: