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Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls

...OM against expressions, not that this matters in this case). Having rules and expressions that just operate on a tiny bit of text (the URI) is prone to create some false-positives... Besides instructing your users to disable their extensions (at least on your site) you can also get the extension a...
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How exactly does a generator comprehension work?

... Do you understand list comprehensions? If so, a generator expression is like a list comprehension, but instead of finding all the items you're interested and packing them into list, it waits, and yields each item out of the expression, one...
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What does the thread_local mean in C++11?

I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
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Check if null Boolean is true results in exception

...r null as any other object. In your particular case, your Boolean is null and the if statement triggers an implicit conversion to boolean that produces the NullPointerException. You may need instead: if(bool != null && bool) { ... } ...
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PDO mysql: How to know if insert was successful

I'm using PDO to insert a record (mysql and php) 7 Answers 7 ...
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Check if a folder exist in a directory and create them using C#

How can I check if directory C:/ contains a folder named MP_Upload , and if it does not exist, create the folder automatically? ...
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Cell spacing in UICollectionView

...in case anyone still needs correct answer here what you need: Override standard flow layout. Add implementation like that: - (NSArray *) layoutAttributesForElementsInRect:(CGRect)rect { NSArray *answer = [super layoutAttributesForElementsInRect:rect]; for(int i = 1; i < [answer count]...
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How do I activate a virtualenv inside PyCharm's terminal?

... set up PyCharm, created my virtualenv (either through the virtual env command, or directly in PyCharm) and activated that environment as my Interpreter. Everything is working just fine. ...
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How to query SOLR for empty fields?

I have a large solr index, and I have noticed some fields are not updated correctly (the index is dynamic). 7 Answers ...
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How to write a simple Html.DropDownListFor()?

...ic options. For example I'd like to provide choices between "Red", "Blue", and "Green". 7 Answers ...