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<!doctype html>
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<html>
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<body>
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  <input type="text" id="blog" placeholder="Please enter the full url of your blog"></input>
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  <input type="button" id="button" value="Crawl" onclick="crawl();"></input>
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  <script type="text/javascript">
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    function crawl()
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    {
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    var xhr = new XMLHttpRequest();
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    xhr.open('POST','http://dev.a11y.in/scrape',true)
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    xhr.send('url='+ document.getElementById('blog').value);
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    document.getElementById('button').disabled = true;
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    }
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  </script>
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</body>
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</html>