Error Security_err Dom Exception 18 Google Chrome
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up at inopportune times and ruin your day with an “Uncaught Error” and a big red exception killing your code in its tracks. So you’re playing around with HTML5 Canvas when all of a sudden you’re getting dom exception 18 chrome a Uncaught Error: SecurityError: DOM Exception 18 in the console. What’s it mean? DOM Exception
Error Security Error Dom Exception 18
18 This exception is thrown when your code is trying to access something it shouldn’t, including cross-domain resources or stuff on your security error dom exception 18 phonegap local filesystem. Once you hit this one you will either need to loosen your browser security settings which is never optimal, or find out how to work around it. HTML5 Canvas & Exception 18 Which brings us http://productforums.google.com/d/topic/chrome/VR9mFqDvSdI to the case of the complaining canvas. Loading images into your canvas from another domain will “taint” your canvas, meaning any attempts to read the canvas back again will fail with this error. This is because your Javascript adheres to a same-origin policy to increase security. It’s essentially done as a containment measure so that a rogue script can’t use your browser to access resources you’re authenticated against. Hypothetical Canvas Attack For instance, if http://getcontext.net/read/chrome-securityerror-dom-exception-18 I hypothetically wanted to access your email and your browser didn’t prevent cross-site-scripting, I could perform a $.ajax('http://gmail.com'). This would pull down your logged-in gmail page, and then I could send all your email messages back to my server. The same applies for images. This feature prevents a rogue site pulling down your Facebook photos, for instance (which again could hypothetically be done), rendering them to a canvas in order to get a hold of the binary image data then sending it back to the attack server. So the second you draw a third party image to your canvas, you can no longer read back the resulting image. The easy solution is to host all your images locally or if that’s not possible you could use a script to pull down and serve the images on your behalf. SVG Image & Canvas SecurityError If you’re playing around with drawing SVG to Canvas in Chrome, you may also run into this security error, but for a different reason. This appears to be a Chrome-specific feature (perhaps a bug?) whereby the SVG document is considered to be of different origin to the canvas. This goes a step further than simply checking the origin of the url, it outright blacklists all SVG images regardless of origin, including images encoded in data: u
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Apple Developer Forums / Read Only Archive / iOS 9.3.3 beta Please enter a title. You can not post a blank message. Please type your message and try again. "SECURITY_ERR: DOM Exception 18” on "iOS9.3 Beta3” Safari 4491Views 9 Replies Latest reply: Jun 17, 2016 5:14 AM by jptrainor Level 1 (0 points) jquery Feb 12, 2016 2:04 AM This error occurs when the history.pushState() or history.replaceState() method is called more than 100 times.This error occurs in "iOS9.3 Beta3” Safari, but does not occur in "iOS9.3 Beta1” Safari.The following is a test method.1. Open xcode7.3 beta3, launch the iOS simulator.2. Open Safari in iOS simulator.3. Enter address of "http://www.apple.com” on Safari.4. Open Safari on Mac, and then link to the simulator.5. Type the following test program to the console.for (var i=0 ; i<=100; i++) { window.history.pushState(null, null, "http://www.apple.com/"); }for (var i=0 ; i<=100; i++) { window.history.replaceState(null, null, "http:/www.apple.com/"); }I get the following error when "i = 100".▼In the case of history.replaceState() method.=======================================Error: SecurityError: DOM Exception 18code: 18column: 124line: 1message: "SecurityError: DOM Exception 18"name: "SecurityError"stack: "replaceState@[native code]↵eval code↵eval@[native code]↵_evaluateOn↵_evaluateAndWrap↵evaluate"DOMException prototype=======================================▼In the case of history.pushState() method.=======================================Error: SecurityError: DOM Exception 18code: 18column: 175line: 1message: "SecurityError: DOM Exception 18"name: "SecurityError"stack: "pushState@[native code]↵eval code↵eval@[native code]↵_evaluateOn↵_evaluateAndWrap↵evaluate"DOMException prototype=======================================My question, which is true, a bug or spec?Thank you guys Tags: none (add) safariContent tagged with safari, webkitContent tagged with webkit This content has been marked as final. Show 9 replies Re: "SECURITY_ERR: DOM Exception 18” on "iOS9.3 Beta3” Safari Level 1 (0 points) Suizi11 Feb 16, 2016 2:25 AM (in response to jquery) I've the same "issue", Also with