How do I include a JavaScript file in another JavaScript file? Same Origin. JSONP provides a better alternative to the other two approaches. Firefox is the most used browser and the same origin policy bypassing was found by Gareth Heyes in October 2012. Loading my document causes the error console to report this error: Error: uncaught exception: [Exception "Security error" code: "1000" nsresult: "0x805303e8 (NS_ERROR_DOM_SECURITY_ERR)" location: "file:///media/disk/javascript/html5/chromakey/chromakey1.htm Line: 23"]. CORS is a part of HTTP that lets servers specify any other hosts from which a browser should permit loading of content. Everyone has already done it with including some JavaScript library like with Bootstrap for example. Internet Explorer has two major exceptions to the same-origin policy: If both domains are in the highly trusted zone (e.g. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Bypass Same origin policy in Service workers. If this popup also contains JavaScript, that script would inherit the same origin as the script that created it. The Same-Origin Policy is one of the fundamental defenses deployed in modern web applications. From the filesystem, each file is in a different origin (this prevents accessing e.g. cy.request() is NOT bound to CORS or same-origin policy. JSONP (JSON with Padding) provides a work-around for this Same-Origin Policy problem. Does the 0m elevation height of a Digital Elevation Model (Copernicus DEM) correspond to mean sea level? Firefox's origin policy for file access can be changed in "about:config". It is often necessary to prevent embedding because embedding a resource always leaks some information about it. What is the difference between the following two t-statistics? OAuth to Account takeover. Does squeezing out liquid from shredded potatoes significantly reduce cook time? The same-origin policy is a browser security feature that restricts cross-origin interactions by documents and scripts. Since the same-origin policy is exceptionally restrictive, browsers have a unique method to bypass this policy by setting special headers. Data enters a web application through an untrusted source. By now you probably get it, we cant live without SOP. He tested his findings on numerous devices, including Qmobile Noir, Sony Xperia, Samsung Galaxy S3, HTC Wildfire and Motorola Razr. Microsoft Internet Explorer Same Origin Policy Bypass Vulnerability Publish date: July 21, 2015 Severity: HIGH Advisory Date: FEB 04, 2015 DESCRIPTION A flaw exists in Internet Explorer that allows a malicious web page to inject JavaScript code into a third-party frame, bypassing the Same-Origin Policy (SOP). In other words Cross-Origin reads are not allowed. Versions prior to Chrome for Android 18.0.1025308 are vulnerable. What is JSONP? When I first saw this hack my brain almost explode, by the elegance and beauty of the way it works. That means that SOP doesnt block