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<title>Welcome to <!--{app_name}--> simple example</title>
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<h2>Welcome to <!--{app_name}--> simple example</h2>
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The current page name is <b><!--{page_name}--></b><br>
This is the example of how the <b><!--{app_name}--></b> is working.<br>
Click here to request the <a href='show_env.html'>show_env</a> page name.<br>
click here request the <a href='show_mix.html'>show_mix</a> page name.
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