The webpage to be inspected was not shown in Developer Tools

[qsu]

"chome_stable+ADBcmd" for remote debugging works fine.
I have tried "chrome_beta+ADBPlugin" both on windows7 and ubuntu. After clicking the inspect link, the window of Developer Tools will be popped out, but the content of "Elements" will always be like following content no matter what page is shown on my Android device.
//
//
//<_html>
//<_head></_head>"
// <_body>
// <_object type="application/x-adbplugin" id="adb-plugin">
// <_script type="text/javascript" src="background.js"></script>
// </_body>
//</_html>

Did I use it in a wrong way?

[paulirish]

you seem to be inspecting the background page of the ADB chrome extension, rather than the page on your device.