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Targeting only Firefox with CSS

... OK, I've found it. This is probably the most clean and easy solution out there and does not rely on JavaScript being turned on. @-moz-document url-prefix() { h1 { color: red; } } <h1>This should be red in FF</h1> It's based on yet another ...
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How to fix getImageData() error The canvas has been tainted by cross-origin data?

...com to hoover up images from the remote dropbox image url, into my canvas, and then submit the image data back into my server. All in javascript share | improve this answer | ...
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Convert string to a variable name

...ttp://www.r-bloggers.com/converting-a-string-to-a-variable-name-on-the-fly-and-vice-versa-in-r/ To convert a string to a variable: x <- 42 eval(parse(text = "x")) [1] 42 And the opposite: x <- 42 deparse(substitute(x)) [1] "x" ...
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Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”

I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I'm facing network issues with iOS8 but everything works fine on iOS7. I get the error "The network connection was lost." . The error is as follows: ...
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Resource interpreted as stylesheet but transferred with MIME type text/html (seems not related with

... i'd like to start by understanding the problem Browsers make HTTP requests to servers. The server then makes an HTTP response. Both requests and responses consist of a bunch of headers and a (sometimes optional) body with some content in it. If ther...
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fatal: The current branch master has no upstream branch

I'm trying to push one of my projects to github, and I keep getting this error: 22 Answers ...
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Django Passing Custom Form Parameters to Formset

... I would use functools.partial and functools.wraps: from functools import partial, wraps from django.forms.formsets import formset_factory ServiceFormSet = formset_factory(wraps(ServiceForm)(partial(ServiceForm, affiliate=request.affiliate)), extra=3) ...
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How do I put a bunch of uncommitted changes aside while working on something else

If I have a bunch of uncommitted changes and want to set it aside while working on something else instead, and then later (f.i. after several days) come back to it and proceed working. What would be the easiest workflow to accomplish this? (So far I have only experience with Mercurial's basic functi...
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Converting XML to JSON using Python?

I've seen a fair share of ungainly XML->JSON code on the web, and having interacted with Stack's users for a bit, I'm convinced that this crowd can help more than the first few pages of Google results can. ...
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Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?

... "security" risk. You can get around it by using absolute paths File.expand_path(__FILE__) et al or doing require './filename' (ironically). or by using require_relative 'filename' or adding an "include" directory ruby -I . ... or the same, using irb; $irb -I . ...