By default, Safari is set to show features of the web, such as some movies, animation, and web applications. You may wish to change security settings to help protect iPhone from possible security risks on the Internet.
Choose Safari, then do one of the following:
To set whether you’re warned when visiting potentially fraudulent websites, turn Fraud Warning on or off.
Fraud warning protects you from potentially fraudulent Internet sites. When you visit a suspicious site, Safari warns you about its suspect nature and doesn’t load the page.
To enable or disable JavaScript, turn JavaScript on or off.
JavaScript lets web programmers control elements of the page—for example, a page that uses JavaScript might display the current date and time or cause a linked page to appear in a new pop-up page.
To enable or disable plug-ins, turn Plug-ins on or off. Plug-ins allow Safari to play some types of audio and video files and to display Microsoft Word files and Microsoft Excel documents.
To block or allow pop-ups, turn Block Pop-ups on or off. Blocking pop-ups stops only pop-ups that appear when you close a page or open a page by typing its address. It doesn’t block pop-ups that open when you tap a link.
To set whether Safari accepts cookies, tap Accept Cookies and choose Never, “From visited,” or Always.
A cookie is a piece of information that a website puts on iPhone so the website can remember you when you visit again. That way, webpages can be customized for you based on information you may have provided.
Some pages won’t work correctly unless iPhone is set to accept cookies.
To clear the history of webpages you’ve visited, tap Clear History.
To clear all cookies from Safari, tap Clear Cookies.
To clear the browser cache, tap Clear Cache.
The browser cache stores the content of pages so the pages open faster the next time you visit them. If a page you open doesn’t show new content, clearing the cache may help.