The major browsers speed up the loading of Web pages by storing a local copy of visited pages in what is called the cache. This works well for surfing the Internet because you won’t have to wait to download a page that you have recently visited. However, page caching is troublesome when you are creating Web pages and viewing the changes you have just made. If your browser is caching pages you may not see your latest version. In some cases you may continue to see an error message in a page even though you have fixed the error.
When developing pages, you should turn off all page caching. In Internet Explorer 4.01, go to the View menu and click Internet Options. In the Temporary Internet Files group box, click Settings. In the Settings dialog box, click the radio button to “Check for newer versions of stored pages on Every visit to the page.” In Netscape Navigator 4.5, go to the Edit menu and click Preferences. On the Preferences dialog box, expand the Advanced node and click Cache. For the setting “Document in cache is compared to document on network”, click Every time and then click OK.