File Linking Parameters: Preventing Caching When browsing various websites, you may have noticed parameters attached to the and <link> tags for CSS and JavaScript files. These parameters, such as ?ver=4.0, are used to prevent caching.</p> <p>JavaScript and CSS files typically get cached by browsers to improve website performance. However, when you update these files and want the changes to immediately reflect on clients' browsers, you need a way to bypass the cache.</p> <p>By adding a unique parameter to the file link, such as a version number or hash, you force the browsers to request the file from the server instead of using the cached version. This ensures that the latest version of the file is always loaded.</p> <p>So, when you see a master.js?v=55c7eccb8e19 link, it means that the master.js file has a version parameter indicating that this is version 55c7eccb8e19. By requesting this specific version from the server, you avoid loading outdated cached files and ensure that the latest changes are applied.</p>
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