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Origin is not allowed by Access-Control-Allow-Origin
...are different JavaScript origin. It doesn't matter that they are on the same machine/hostname.
You need to enable CORS on the server (localhost:8080). Check out this site: http://enable-cors.org/
All you need to do is add an HTTP header to the server:
Access-Control-Allow-Origin: http://localho...
@media media query and ASP.NET MVC razor syntax clash
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use double @@ symbols. That will escape @ symbol and render @media correctly on client side
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Center a position:fixed element
...uch as IE6/7, then you can instead also add left: 0 and right: 0 to the element having a margin-left and margin-right of auto, so that the fixed positioned element having a fixed width knows where its left and right offsets start. In your case thus:
position: fixed;
width: 500px;
height: 200px;
mar...
img tag displays wrong orientation
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I found part of the solution. Images now have metadata that specify the orientation of the photo. There is a new CSS spec for image-orientation.
Just add this to your CSS:
img {
image-orientation: from-image;
}
According to the spec as of Jan 25 2016, Firefox and...
How to prevent buttons from submitting forms
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You're using an HTML5 button element. Remember the reason is this button has a default behavior of submit, as stated in the W3 specification as seen here:
W3C HTML5 Button
So you need to specify its type explicitly:
<button type="button">Button</bu...
Force R not to use exponential notation (e.g. e+10)?
... bit of a grey area. You need to recall that R will always invoke a print method, and these print methods listen to some options. Including 'scipen' -- a penalty for scientific display. From help(options):
‘scipen’: integer. A penalty to be applied when deciding to print
numer...
How to reload/refresh an element(image) in jQuery
Is it possible to reload an image with an identical file name from a server using jQuery?
12 Answers
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How can I remove a character from a string using Javascript?
...ving so much fun here and user1293504 doesn't seem to be coming back any time soon to answer clarifying questions, here's a method to remove the Nth character from a string:
String.prototype.removeCharAt = function (i) {
var tmp = this.split(''); // convert to an array
tmp.splice(i - 1 , 1)...
Why not abstract fields?
Why can't Java classes have abstract fields like they can have abstract methods?
5 Answers
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Convert PDF to image with high resolution
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The density parameter is a bit special in that in must come before the input file. As PDF is a vector based file format which does not have (much) notion of pixels, it says something like "page is 8in by 12in". If you want pixel, you use the...