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What's the “Content-Length” field in HTTP header?

...ripts. In this case, the Content-Type: header is usually application/x-www-form-urlencoded, and the Content-Length: header gives the length of the URL-encoded form data (here's a note on URL-encoding). The CGI script receives the message body through STDIN, and decodes it. Here's a...
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Drop shadow for PNG image in CSS

..."; } <!-- HTML elements here --> <svg height="0" xmlns="http://www.w3.org/2000/svg"> <filter id="drop-shadow"> <feGaussianBlur in="SourceAlpha" stdDeviation="4"/> <feOffset dx="12" dy="12" result="offsetblur"/> <feFlood flood-color="rgb...
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How do I access the host machine from the guest machine? [closed]

...2\drivers\etc\hosts Add a line to the file such as: [default-gateway-IP] www.example.com [default-gateway-IP] example.com Save Try opening http://www.example.com or http://example.com in IE share | ...
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How to send a JSON object over Request with Android?

... easy: AsyncHttpClient client = new AsyncHttpClient(); client.get("http://www.google.com", new AsyncHttpResponseHandler() { @Override public void onSuccess(String response) { System.out.println(response); } }); To send JSON (credit to `voidberg' at https://github.com/loopj/and...
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Difference between string and text in rails?

...2 | :limit => 1 to 4294967296 (default = 65536) Reference: http://www.packtpub.com/article/Working-with-Rails-ActiveRecord-Migrations-Models-Scaffolding-and-Database-Completion When should each be used? As a general rule of thumb, use :string for short text input (username, email, passwo...
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Rendering HTML inside textarea

... = document.getElementById("box"); var data = ` <svg xmlns="http://www.w3.org/2000/svg" width="${inp.offsetWidth}" height="${inp.offsetHeight}"> <foreignObject width="100%" height="100%"> <div xmlns="http://www.w3.org/1999/xhtml" style="font-family:monospace;font-style: norma...
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How to automatically start a service when running a docker container?

...ing the mysql daemon" service mysql start echo "navigating to volume /var/www" cd /var/www echo "Creating soft link" ln -s /opt/mysite mysite a2enmod headers service apache2 restart a2ensite mysite.conf a2dissite 000-default.conf service apache2 reload if [ -z "$1" ] then exec "/usr/sbin/apa...
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jQuery.click() vs onClick

...just HTML elements. More about Modern event registration -> http://www.quirksmode.org/js/events_advanced.html Other methods such as setting the HTML attributes, example: <button onclick="alert('Hello world!')"> Or DOM element properties, example: myEl.onclick = function(event){a...
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How to check if a string starts with a specified string? [duplicate]

... per-thread cache of compiled regular expressions (up to 4096). http://www.php.net/manual/en/intro.pcre.php share | improve this answer | follow | ...
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Playing .mp3 and .wav in Java?

...erAPI. It's open source, very simple and it doesn't require JavaFX. http://www.javazoom.net/jlgui/api.html After downloading and extracting the zip-file one should add the following jar-files to the build path of the project: basicplayer3.0.jar all the jars from the lib directory (inside BasicPla...