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Inputting a default image in case the src attribute of an html is not valid?

...e. Maybe you wanna use JQuery to hook the event. <img src="foo.jpg" onerror="if (this.src != 'error.jpg') this.src = 'error.jpg';"> Updated with jacquargs error guard Updated: CSS only solution I recently saw Vitaly Friedman demo a great CSS solution I wasn't aware of. The idea is to appl...
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C# How can I check if a URL exists/is valid?

...om/silly"); } You would try/catch around the DownloadString to check for errors; no error? It exists... With C# 2.0 (VS2005): private bool headOnly; public bool HeadOnly { get {return headOnly;} set {headOnly = value;} } and using(WebClient client = new MyClient()) { // code as ...
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“date(): It is not safe to rely on the system's timezone settings…”

I got this error when I requested to update the PHP version from 5.2.17 to PHP 5.3.21 on the server. 24 Answers ...
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$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions

...up my machine with pecl_http and memcache and in both cases, I get similar errors. This is on MAC OS X 10.7.3 (lion) and I also have XCODE installed on it. I also installed Zend Server community edition before running these commands and have CFLAGS='-arch i386 -arch x86_64' environment variables set...
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Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi

...ord mentioned in here, here, here, and here, no clue. I still get the same error: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) I'm able to connect normally, show all databases, do selects and inserts, create and add users, and but when it comes to GRANT, I'm...
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Making a Simple Ajax call to controller in asp.net mvc

.../json; charset=utf-8", dataType: "json", success: successFunc, error: errorFunc }); From your update: $.ajax({ type: "POST", url: '@Url.Action("FirstAjax", "AjaxTest")', contentType: "application/json; charset=utf-8", data: { a: "testing" }, dataType: "json", s...
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C++ compiling on Windows and Linux: ifdef switch [duplicate]

... This response isn't about macro war, but producing error if no matching platform is found. #ifdef LINUX_KEY_WORD ... // linux code goes here. #elif WINDOWS_KEY_WORD ... // windows code goes here. #else #error Platform not supported #endif If #error is not s...
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How to prevent browser to invoke basic auth popup and handle 401 error using Jquery?

... I have successfully implemented this using jquery. However when I get 401 error basic auth browser popup is opened and jquery ajax error callback is not called. ...
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Proxy with express.js

...inish client request as well ores.end(); }); }) .on('error', e => { // we got an error console.log(e.message); try { // attempt to set error message and http status ores.writeHead(500); ores.write(e.message); } catch (e) { ...
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move_uploaded_file gives “failed to open stream: Permission denied” error

I keep getting this error when trying to configure the upload directory with Apache 2.2 and PHP 5.3 on CentOS. 13 Answers ...