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Understanding the Rails Authenticity Token
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What happens
When the user views a form to create, update, or destroy a resource, the Rails app creates a random authenticity_token, stores this token in the session, and places it in a hidden field in the form. When the user subm...
How to fix getImageData() error The canvas has been tainted by cross-origin data?
...onymous";
This only works if the remote server sets the following header appropriately:
Access-Control-Allow-Origin "*"
The Dropbox file chooser when using the "direct link" option is a great example of this. I use it on oddprints.com to hoover up images from the remote dropbox image url, into ...
How can I find the number of arguments of a Python function?
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str(sig) # returns: '(self, arg1, kwarg1=None)'
or you can also get a mapping of attribute names to parameter objects via sig.parameters.
params = sig.parameters
print(params['kwarg1']) # prints: kwarg1=20
Additionally, you can call len on sig.parameters to also see the number of arguments ...
Add IIS 7 AppPool Identities as SQL Server Logons
I'm running an IIS 7 Website with an AppPool of Integrated Pipeline Mode .
The AppPools does NOT run under NetworkService, etc.. identity (by purpose), but uses its own AppPool Identitiy (IIS AppPool\MyAppPool).
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How to set environment variables from within package.json
...ironment variable in the script command:
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"scripts": {
"start": "node app.js",
"test": "NODE_ENV=test mocha --reporter spec"
},
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Then use process.env.NODE_ENV in your app.
Note: This is for Mac & Linux only. For Windows refer to the comments.
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Dealing with nginx 400 “The plain HTTP request was sent to HTTPS port” error
I'm running a Sinatra app behind passenger/nginx. I'm trying to get it to respond to both http and https calls. The problem is, when both are defined in the server block https calls are responded to normally but http yields a 400 "The plain HTTP request was sent to HTTPS port" error. This is for a s...
Determine if code is running as part of a unit test
...ich checked whether the NUnit framework assembly was loaded in the current AppDomain. It only needed to do this once, then cache the result. Ugly, but simple and effective.
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Good tutorials on XMPP? [closed]
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We simplified the process of creation chat app's under iOS using cocoa pods, you can learn more or download demo code here github.com/processone/demo-xmpp-ios
– Loegic
Jul 24 '15 at 16:36
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Setting action for back button in navigation controller
...he view controller where you want to detect the press:
-(void) viewWillDisappear:(BOOL)animated {
if ([self.navigationController.viewControllers indexOfObject:self]==NSNotFound) {
// back button was pressed. We know this is true because self is no longer
// in the navigation stac...
C++ performance vs. Java/C#
... See shootout.alioth.debian.org/u32/… for examples of this theory not happening.
– Justicle
Sep 18 '11 at 20:27
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