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Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]

...nt to make a request to example.com => you can. Javascript is limited by the "same origin policy" for security reasons so that a malicious script cannot contact a remote server and send sensitive data. jsonp is a different way to use javascript. You make a request and results are encapsulated ...
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Access nested dictionary items via a list of keys?

...ists or a mix of dictionaries and lists, so the names should really be get_by_path() and set_by_path(): from functools import reduce # forward compatibility for Python 3 import operator def get_by_path(root, items): """Access a nested object in root by item sequence.""" return reduce(opera...
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List columns with indexes in PostgreSQL

...NY(ix.indkey) and t.relkind = 'r' and t.relname like 'test%' order by t.relname, i.relname; table_name | index_name | column_name ------------+------------+------------- test | pk_test | a test | pk_test | b test2 | uk_test2 | b test2 | uk_test2 ...
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Control the dashed border stroke length and distance between strokes

...n't know any fine tuning on it, you should work with images as recommended by Ham. Reference: http://www.w3.org/TR/CSS2/box.html#border-style-properties share | improve this answer | ...
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What is an application binary interface (ABI)?

...locating a function in a library file, the function is typically looked up by name. C++ allows you to overload function names, so name alone is not sufficient to identify a function. C++ compilers have their own ways of dealing with this internally, called name mangling. An ABI can define a stand...
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JOIN two SELECT statement results

...) AS [# Late] FROM (SELECT ks, COUNT(*) AS '# Tasks' FROM Table GROUP BY ks) t1 LEFT JOIN (SELECT ks, COUNT(*) AS '# Late' FROM Table WHERE Age > Palt GROUP BY ks) t2 ON (t1.ks = t2.ks); share | ...
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Difference between the Apache HTTP Server and Apache Tomcat? [closed]

...rated into Java code (HttpServlet), which is then compiled to .class files by the server and executed by the Java virtual machine. share | improve this answer | follow ...
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Accessing nested JavaScript objects and arays by string path

...this based on some similar code I already had, it appears to work: Object.byString = function(o, s) { s = s.replace(/\[(\w+)\]/g, '.$1'); // convert indexes to properties s = s.replace(/^\./, ''); // strip a leading dot var a = s.split('.'); for (var i = 0, n = a.length; i...
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What is the “realm” in basic authentication

... From RFC 1945 (HTTP/1.0) and RFC 2617 (HTTP Authentication referenced by HTTP/1.1) The realm attribute (case-insensitive) is required for all authentication schemes which issue a challenge. The realm value (case-sensitive), in combination with the canonical root URL of the server bein...
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What's the purpose of the LEA instruction?

...s in EAX, and xcoord and ycoord are each 32 bits (so ycoord is at offset 4 bytes in the struct), this statement can be compiled to: MOV EDX, [EBX + 8*EAX + 4] ; right side is "effective address" which will land y in EDX. The scale factor of 8 is because each Point is 8 bytes in size. Now consi...