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“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application ru

...t. However, your browser supported CORS (Cross-Origin Resource Sharing) to allow cross-domain XMLHttpRequest if the server OKed it. That's where the Access-Control-Allow-Origin header came in. I believe you mentioned you were running it from a file:// URL. There are two ways for CORS headers to sign...
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SQLite Concurrent Access

...emely fast and has many clever optimizations to minimize contention. Especially SQLite 3. For most desktop/laptop/tablet/phone applications, SQLite is fast enough as there's not enough concurrency. (Firefox uses SQLite extensively for bookmarks, history, etc.) For server applications, somebody som...
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how do I strip white space when grabbing text with jQuery?

...in js: var emailAdd = $(this).text().replace(/ /g,''); That will remove all the spaces If you want to remove the leading and trailing whitespace only, use the jQuery $.trim method : var emailAdd = $.trim($(this).text()); ...
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How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?

...sk<Void, Void, String> { // you may separate this or combined to caller class. public interface AsyncResponse { void processFinish(String output); } public AsyncResponse delegate = null; public MyAsyncTask(AsyncResponse delegate){ this.delegate = delegate; } ...
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ActiveMQ or RabbitMQ or ZeroMQ or [closed]

...velopes are quite big. ZeroMq is a very lightweight messaging system specially designed for high throughput/low latency scenarios like the one you can find in the financial world. Zmq supports many advanced messaging scenarios but contrary to RabbitMQ, you’ll have to implement most of them yourse...
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Resize svg when window is resized in d3.js

... For example, viewBox forces axis fonts and ticks to scale up/down, potentially looking awkward compared to html text. In contrast, a re-render enables the chart to keep it's labeling a consistent size, plus it provides an opportunity to add or remove ticks. – Karim Hernandez ...
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Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”

When I compile C/C++ program with popen in php ... I got this error: 9 Answers 9 ...
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Meaning of tilde in Linux bash (not home directory)

... Tilde expansion in Bash: http://bash-hackers.org/wiki/doku.php/syntax/expansion/tilde share | improve this answer | follow | ...
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Generate colors between red and green for a power meter?

...ges using this code ... any ideas? For example, the following percentages all return RGB 1,255,0: 0.277, 0.222, 0.111 ... the higher values (for example 1.0) do return the correct RGBs with brighter green, but they stop trailing off after a threshold and I only get shades of green on my scale. ...
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Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)

...dress (127.0.0.1) instead of 'localhost' in mysql_connect(). This "forces" php to connect through TCP/IP instead of a unix socket. share | improve this answer | follow ...