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CORS - What is the motivation behind introducing preflight requests?

...ed for preflight requests. But why do we have to do it for every resource (URL) on the server? The server either handles CORS or it doesn't. Are you sure about that? It's not uncommon for multiple servers to handle requests for a single domain. For example, it may be the case that requests to A.com...
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Do we need type=“text/css” for in HTML5 [duplicate]

... @Timo: look at the URL of this question. Does the URL end in .html? The URL cannot be used to deduce what file type the resource is. Therefore the rel="stylesheet" attribute is very important. – joonas.fi ...
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How to darken a background using CSS?

... rgba(0, 0, 0, 0.7) ), /* bottom, image */ url(http://fc02.deviantart.net/fs71/i/2011/274/6/f/ocean__sky__stars__and_you_by_muddymelly-d4bg1ub.png); } Reference: linear-gradient() - CSS | MDN UPDATE: Not all browsers support RGBa, so you should have a 'fa...
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How does this checkbox recaptcha work and how can I use it?

...cha = $_POST['g-recaptcha-response']; $privatekey = "SECRET_KEY"; $url = 'https://www.google.com/recaptcha/api/siteverify'; $data = array( 'secret' => $privatekey, 'response' => $captcha, 'remoteip' => $_SERVER['REMOTE_ADDR'] ); $curlConfig = arr...
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Chrome Extension Message passing: response not sent

...e is called). So you just need to add return true; after the call to getUrls to indicate that you'll call the response function asynchronously. share | improve this answer | ...
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How to render a PDF file in Android

...rue); mWebView.getSettings().setPluginsEnabled(true); mWebView.loadUrl("https://docs.google.com/gview?embedded=true&url="+LinkTo); setContentView(mWebView); } } share | improve th...
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Store password in TortoiseHg

...ng extension instead. See another answer here. You can change your push URL to https://username:password@hostname.com/repo. This is explained in Google Code's and Mercurial's FAQs. EDIT: Mercurial FAQ explains another way to do it: With Mercurial 1.3 you can also add an auth section to your ...
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How to create .ipa file using Xcode?

...evice 6)Tricky part -> User can download app from company's website URL. Many of us might get stuck and start creating website url to upload ipa, which is not required. Simply write google website url with https. :) 7)Click on export and you get ipa. 8)Visit https://www.diawi.com/ ...
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How to do a GitHub pull request

...changes between two commits to the standard output, and includes the given URL in the generated summary." Github launches its own version since day one (February 2008), but redesigned that feature in May 2010, stating that: Pull Request = Compare View + Issues + Commit comments e-notes for "re...
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Prevent direct access to a php include file

...error instead of executing it when it's accessed directly by typing in the URL instead of being included. 34 Answers ...