Ie Script Error Line Number
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An Error Has Occurred In The Script On This Page Windows 7
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Internet Explorer 11 Script Error Keeps Popping Up
a jsp with lots of javascript code. Whenever there is a javascript error on the page, shown in the status bar of the IE browser, the line number reported to contain the error, does not match with the line number that actually contains the error. I am doing a right click>view source to find the line number reported. But that line does not contain the error. The error, I an error has occurred in the script on this page windows 10 assume, is in some other line. What could be the reason for the erroneous line numbers being reported. Please Help. javascript numbers line share|improve this question asked Jan 6 '10 at 9:03 The Machine 5464926 I can only use IE to test my application. Hence firebug is not going to be of much help. Also, i used to get the correct line numbers say about a month ago.I dont know how all of a sudden there is this frustrating discrepancy. –The Machine Jan 6 '10 at 9:13 1 In addition to the great suggestions about using the IE dev tool in IE > 8, you can also get Firebug Lite, which works in any browser, so Firebug can actually be of help :) –Kato Feb 1 '12 at 23:04 add a comment| 5 Answers 5 active oldest votes up vote 7 down vote As noted in other answers, IE is bad at reporting line numbers for errors. However, the built-in debugger (press F12) in IE8 and later is much more helpful, so I suggest you try that. share|improve this answer edited Jun 25 '13 at 13:49 answered Jan 6 '10 at 9:17 Tim Down 193k42309393 I agree. "Tools -> Develop
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almost a year ago. If you look at any javascript error report, you will see a cryptic error polluting the reports http://ravikiranj.net/posts/2014/code/how-fix-cryptic-script-error-javascript/ under the name "Script error." without any information about the error. This happens in Firefox, Safari, and Chrome when an exception violates the browser's same-origin policy - i.e. when the https://blog.sentry.io/2016/01/04/client-javascript-reporting-window-onerror.html error occurs in a script that's hosted on a domain other than the domain of the current page. This tech post details how you can fix this error and script error decrypt the error message. Table of Contents Background Why does the browser say "Script error." instead of something meaningful ? How do I fix the "Script error." ? Server Client Example Setup HTML CDN JS "Script error." demo without CORS Actual JS Error with CORS enabled Related articles on web Background The "Script error." happens in Firefox, Safari, and Chrome script error line when an exception violates the browser's same-origin policy - i.e., when the error occurs in a script that's hosted on a domain other than the domain of the current page. This is a very common scenario when the javascript served on a webpage is hosted on a CDN (Content Delivery Network) such as Akamai where the domain of the javascript file is different from the webpage that is including the JS and running it. This behavior is intentional. It prevent scripts from leaking information to external domains. For an example, imagine that you accidentally visited a site called evilsite.com that serves a script pointing to your bank's home page such as "mybank.com/index.html". 1 Please note that the script tag is pointing to an html file rather than JavaScript. This will result in a script error, but the error might be interesting because it might tell us if you are logged in or not. Imagine that if you're logged in, the error spitted out might be something like "Welcome Ravi.. is undefined", whereas if
to log client-side errors and report them to your servers. It’s also one of the major mechanisms by which Sentry’s client JavaScript integration (raven-js) works. You listen to the onerror event by assigning a function to window.onerror: window.onerror = function (msg, url, lineNo, columnNo, error) { // ... handle error ... return false; } When an error is thrown, the following arguments are passed to the function: msg – The message associated with the error, e.g. “Uncaught ReferenceError: foo is not defined” url – The URL of the script or document associated with the error, e.g. “/dist/app.js” lineNo – The line number (if available) columnNo – The column number (if available) error – The Error object associated with this error (if available) The first four arguments tell you in which script, line, and column the error occurred. The final argument, Error object, is perhaps the most valuable. Let’s learn why. The Error object and error.stack At first glance the Error object isn’t very special. It contains 3 standardized properties: message, fileName, and lineNumber. Redundant values that already provided to you via window.onerror. The valuable part is a non-standard property: Error.prototype.stack. This stack property tells you at what source location each frame of the program was when the error occurred. The stack trace can be a critical part of debugging an error. And despite being non-standard, this property is available in every