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Insert code into the page context using a content script
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Underlying cause:
Content scripts are executed in an "isolated world" environment.
Solution::
To access functions/variables of the page context ("main world") you have to inject the code that wants to access them into the page itself. Same thing if yo...
jQuery Ajax File Upload
...nd("upload_file", true);
$.ajax({
type: "POST",
url: "script",
xhr: function () {
var myXhr = $.ajaxSettings.xhr();
if (myXhr.upload) {
myXhr.upload.addEventListener('progress', that.progressHandling, false);
}
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How can I check if a background image is loaded?
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Enter this in any page that have jquery: javascript:void($('<img/>').attr('src', 'http://farm6.static.flickr.com/5049/5220175127_5693faf952.jpg').load(function() { $('html').css('background-image', 'url(http://farm6.static.flickr.com/5049/5220175127_5693faf952.jpg...
How can I use jQuery in Greasemonkey scripts in Google Chrome?
...you may know, Google Chrome has put some severe limitation on Greasemonkey scripts.
11 Answers
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Escaping HTML strings with jQuery
...g and have it properly escaped for display in an HTML page (preventing JavaScript/HTML injection attacks). I'm sure it's possible to extend jQuery to do this, but I don't know enough about the framework at the moment to accomplish this.
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Why is document.body null in my javascript?
...nt yet. In general, you want to create all elements before you execute javascript that uses these elements. In this case you have some javascript in the head section that uses body. Not cool.
You want to wrap this code in a window.onload handler or place it after the <body> tag (as mentioned ...
JavaScript Regular Expression Email Validation [duplicate]
...sing on my page.
http://www.zparacha.com/validate-email-address-using-javascript-regular-expression/
/^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,6}$/
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$(document).ready equivalent without jQuery
I have a script that uses $(document).ready , but it doesn't use anything else from jQuery. I'd like to lighten it up by removing the jQuery dependency.
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Detect blocked popup in Chrome
I am aware of javascript techniques to detect whether a popup is blocked in other browsers (as described in the answer to this question ). Here's the basic test:
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How to strip HTML tags from string in JavaScript? [duplicate]
How can I strip the HTML from a string in JavaScript?
4 Answers
4
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