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Cross-Origin Request Headers(CORS) with PHP headers

... Access-Control-Allow-Headers does not allow * as accepted value, see the Mozilla Documentation here. Instead of the asterisk, you should send the accepted headers (first X-Requested-With as the error says). ...
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ViewPager and fragments — what's the right way to store fragment's state?

...agment will be placed. FragmentPagerAdapter.getItem(int position) is only called when a fragment for that position does not exist. After rotating, Android will notice that it already created/saved a fragment for this particular position and so it simply tries to reconnect with it with FragmentManage...
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mongo group query how to keep fields

...are accumulated/funneled/reduced) doesn't make so much sense even theoretically. However, sorting before hand is actually inefficient compared to sorting each group within themselves since sorting algorithms are more complex than O(n). I wish there would be better ways in MongoDB. ...
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Progress indicator during pandas operations

...se you're interested in how this works (and how to modify it for your own callbacks), see the examples on github, the full documentation on pypi, or import the module and run help(tqdm). Other supported functions include map, applymap, aggregate, and transform. EDIT To directly answer the original ...
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html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to

...wsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception. store.js line 73 "QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to add something to storage that exceeded the quota." What happens is that the window object still exposes localS...
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How to parse/read a YAML file into a Python object? [duplicate]

...ame: Node 2 branch2-1: name: Node 2-1 And you've installed PyYAML like this: pip install PyYAML And the Python code looks like this: import yaml with open('tree.yaml') as f: # use safe_load instead load dataMap = yaml.safe_load(f) The variable dataMap now contains...
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Importing from a relative path in Python

...his method is still commonly used in some situations, where you aren't actually ever 'installing' your package. For example, it's popular with Django users. You can add Common/ to your sys.path (the list of paths python looks at to import things): import sys, os sys.path.append(os.path.join(os.p...
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TypeScript static classes

...hat cannot be subclassed and must contain only static methods. C# does not allow one to define functions outside of classes. In TypeScript this is possible, however. If you're looking for a way to put your functions/methods in a namespace (i.e. not global), you could consider using TypeScript's mod...
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Is [UIScreen mainScreen].bounds.size becoming orientation-dependent in iOS8?

...would be even more helpful if it was explained what interface oriented actually means. I may be wrong, but I think the orientation dependence only pertains to view controllers. If you take any other class and calculate the bounds, they are still according to the old style, always portrait. ...
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Python circular importing?

... of it) for the first time, the code inside the module is executed sequentially like any other code; e.g., it is not treated any differently that the body of a function. An import is just a command like any other (assignment, a function call, def, class). Assuming your imports occur at the top of th...