Java Script Error On Line One
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the new WordPress Code Reference! Using Your Browser to Diagnose JavaScript Errors If you're experiencing issues with your interactive functionality this may be due to JavaScript errors or conflicts. For example, your flyout menus may how to check javascript errors in chrome be broken, your metaboxes don't drag, or your add media buttons aren't working. find javascript errors online In order to formulate your support request it helps the team to know what the JavaScript error is. This fix javascript error guide will show you how to diagnose JavaScript issues in different browsers. Contents 1 Step 1: Try Another Browser 2 Step 2: Enable SCRIPT_DEBUG 3 Step 3: Diagnosis 3.1 Firefox 3.2 Internet javascript error console chrome Explorer 3.3 Chrome 3.4 Safari 3.5 Opera 4 Step 4: Reporting Step 1: Try Another Browser To make sure that this is a JavaScript error, and not a browser error, first of all try opening your site in another browser. if the site is not having the same issue in the new browser you know that the error is browser specific if the site
Javascript Error Types
is having the same error it is not an error that is specific to one browser Make note of any browsers you are experiencing the error in. You can use this information when you are making a support request. Step 2: Enable SCRIPT_DEBUG You need to turn on script debugging. Open wp-config.php and add the following line before "That's all, stop editing! Happy blogging". define('SCRIPT_DEBUG', true); Check to see if you are still having an issue. Issue is fixed - turn off script debugging and report the issue on the support forum, telling the volunteers that you turned on script debugging and it solved the problem. Issue persists - proceed to Step 3. Step 3: Diagnosis Now that you know which browsers you are experiencing issues in you can start to diagnose the issue. Firefox 1. Open the Console Go to the screen where you are experiencing the error. In Firefox, navigate to Tools > Web Developer > Error Console or press Ctrl + Shift + J. 2. Identify the Error The error console will open. If you don't see any errors try reloading the page. The error may be gene
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How To Fix Javascript Errors In Google Chrome
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Sign in Pricing Blog Support Search GitHub This repository Watch 48 Star 961 Fork 301 getsentry/raven-js Code Issues 92 Pull requests 14 Projects 0 Pulse Graphs New issue "Javascript error: Script error. on line 0" #223 Closed skovhus opened this Issue https://github.com/getsentry/raven-js/issues/223 Jul 2, 2014 · 9 comments Projects None yet Labels None yet Milestone No milestone Assignees No one assigned 2 participants skovhus commented Jul 2, 2014 First, thanks for a great library! I'm wondering about http://ravikiranj.net/posts/2014/code/how-fix-cryptic-script-error-javascript/ an event we are getting with the message Javascript error: Script error. on line 0. Our whitelistUrls is only including our own js files. Currently I see these events coming from different browsers: 30 Firefox 30.0 30 Chrome script error 35.0.1916.153 8 Safari 6.1.4 6 Safari 6.0 3 Safari 7.0.4 2 ChromeiOS 35.0.1916.41 2 Chrome 35.0.1916.114 2 Safari 7.0.3 1 Chrome 34.0.1847.131 1 Chrome 33.0.1750.154 In the source code Raven.js already set up filters for Script error https://github.com/getsentry/raven-js/blob/master/src/raven.js#L66 But should Javascript error: Script error. on line 0 also be added by default? I guess the event I'm seeing is related "script being pulled in from an external domain and CORS" as described in http://blog.errorception.com/2012/04/script-error-on-line-0.html Sentry member mattrobenolt javascript errors in commented Jul 2, 2014 @skovhus What is the exact error message being sent? Is it a different case or something? skovhus commented Jul 2, 2014 @mattrobenolt so I cannot reproduce the error, but as you see some users with different browsers get this error. The message shown in Sentry is Javascript error: Script error. on line 0, so I guess that's the exact error message. And as the Script error in L66 is not a regexp, our error is not the ignoreErrors list. skovhus commented Jul 2, 2014 @mattrobenolt But I guess I can get the message from our nginx if you want it. But shouldn't it be the same as reported by Sentry? Sentry member mattrobenolt commented Jul 2, 2014 Yeah, that's good enough. Are all those other browser being reported as this exact literal string? Or do you see other variants? If so, I'll add this one to the list. skovhus commented Jul 2, 2014 I see these variations: Javascript error: Script error on line 0 (IE) Javascript error: Script error. on line 0 (all the other browsers) Sentry member mattrobenolt commented Jul 2, 2014 lol skovhus commented Jul 2, 2014 For once, the feedback from IE seems sane... : ) skovhus commented Jul 7, 2014 #224 Sentry member mattrobenolt commented Jul 7, 2014 Closed with #224 mattrobenolt closed this Jul 7, 2014 Sign up
almost a year ago. If you look at any javascript error report, you will see a cryptic error polluting the reports 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 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 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 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 you're not logged in, it might be "Please Login ... is undefined" or something similar. If evilsite.com does this for the top 20 or so bank institutions, they'd have a pretty good idea of which banking sites you visit, and enables it to target you with a superior phishing page. This is one such example as to why browsers shouldn't allow any data leak across domain