Tuesday, January 3, 2012

Fix JavaScript Problems With Internet Explorer 8


Many websites use JavaScript code to display design elements and offer interactive features, but the code can cause problems in Internet Explorer 8 and other Web browsers if scripting has been disabled in the browser as a security measure. 

About JavaScript

JavaScript is one of many widely-used Web design and coding languages deployed by webmasters and designers to display content on Web pages. JavaScript code integrates with static HyperText Markup Language code and is primarily used to offer dynamic content and interactive features, such as animated navigation menus and lightbox-style image galleries. JavaScript is also used behind the scenes to track website visitors and alter the Web page’s display settings to suit different browsers.

JavaScript Problems

JavaScript is designed to work on all Web browsers, including Microsoft’s Internet Explorer 8. Problems usually occur only when the browser’s security settings have been altered to disable active scripting. In this case, opening a Web page that uses JavaScript code can generate on-screen error messages and some or all of the Web page might not display correctly. Even if the Web page does display in the browser, you won’t be able to see or use the JavaScript features.

IE8 Security Settings

IE8’s active scripting function handles JavaScript code on websites and this function is enabled by default. Disabling the active scripting function by mistake is possible if you change the overall security settings for the browser; for example, from the Medium or Medium-High to the High setting in the Security section of IE8’s Internet Options. Because JavaScript can be used to deploy malicious code, higher security settings disable the browser’s active scripting function.


Step-by-Step Guide to Troubleshooting JavaScript Problems With Internet Explorer 8

To prevent JavaScript problems in IE8, customize the browser’s security settings to enable the active scripting function. 
  1. Click the Settings button labeled with the gears icon in the IE8 menu bar, and then click on Internet Options in the context menu. 
  2. Click the Security tab at the top of the dialog box. In the Internet zone section, click the Custom Level button. Scroll to the Scripting section at the bottom of the Settings page. 
  3. Click the Enable button below the Active Scripting and Scripting of Java Applets settings. Click OK to close the dialog box, and then click Apply in the Internet Options dialog box to save your settings. 

After you’ve changed the security settings, IE8 should display JavaScript correctly on Web pages.

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