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What are the security risks of setting Access-Control-Allow-Origin?
... is automatically provided by the browser (cookies, cookie-based sessions, etc.), the requests triggered by the third party sites will use them too.
This indeed poses a security risk, particularly if you allow resource sharing not just for selected resources but for every resource. In this context ...
How to check version of python modules?
...import lxml; print(lxml.__version__)"
Traceback (most recent call last):
File "<string>", line 1, in <module>
AttributeError: 'module' object has no attribute '__version__'
Lastly, as the commands in your question are prefixed with sudo, it appears you're installing to the global pyt...
Adding an identity to an existing column
...s columns with this method. Adding/removing columns, changing nullability, etc. isn't allowed.
You'll need to drop foriegn keys before you do the switch and restore them after.
Same for WITH SCHEMABINDING functions, views, etc.
new table's indexes need to match exactly (same columns, same order, e...
Passing argument to alias in bash [duplicate]
...finition (for each defined alias, keyword, function, builtin or executable file):
type -a foo
Or type only (for the highest precedence occurrence):
type -t foo
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What is Full Text Search vs LIKE
...he term. Full text search is optimized to compute the intersection, union, etc. of these record sets, and usually provides a ranking algorithm to quantify how strongly a given record matches search keywords.
The SQL LIKE operator can be extremely inefficient. If you apply it to an un-indexed column...
What is the fastest factorial function in JavaScript? [closed]
...al benefit of not having the full precision numbers in the code is reduced file size.
– le_m
Mar 9 '17 at 17:28
Your s...
How can I get device ID for Admob
...g XML layout and if you already have "ads:testDevices=" in your layout XML file, AdMob will NOT print the "To get test ads on this device..." message in the LogCat output. Take that out and then you will see the LogCat message.
Here is a nice tutorial on how to find device id in LogCat:
http://web...
How to use NSCache
...SCache to add a sharedInstance property. Just put the following code in a file called something like NSCache+Singleton.swift:
import Foundation
extension NSCache {
class var sharedInstance : NSCache {
struct Static {
static let instance : NSCache = NSCache()
}
...
How to kill all processes with a given partial name? [closed]
...34, and 345, you can kill 123 234 345 just like you can rm or cat multiple file arguments.
– tripleee
Jul 9 '12 at 7:49
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Regular Expressions and negating a whole character group [duplicate]
...n a specific sequence of characters. I've tried using [^ab] , [^(ab)] , etc. to match strings containing no 'a's or 'b's, or only 'a's or only 'b's or 'ba' but not match on 'ab'. The examples I gave won't match 'ab' it's true but they also won't match 'a' alone and I need them to. Is there some...