Content Security Policy is delivered via HTTP response header. It defines approved sources of content that the browser may load. It helps to detect and mitigate certain types of attacks, including Cross-Site Scripting (XSS) and data injection attacks.

The Referrer-Policy HTTP header controls how much referrer information should be included with requests. Aside from the HTTP header, you can also set this policy in HTML.

Using the Hypertext Transfer Protocol (HTTP), browsers can communicate with web servers to get information to load web pages. When an HTTP request is made, and an HTTP response is given by a web server, the request or response is usually accompanied by additional information, contained in an HTTP header.

The Integer field provides a dropdown select box with a range of integer values.

The Hidden field type provides a hidden field for saving a field whose value cannot be altered directly by a user.

The Folder List field provides a drop down list of folders from a specified directory.

HTML is used to create websites. HTML stands for Hyper Text Markup Language. A markup language is a set of markup tags that describe document content. HTML documents are also called web pages.

A form to the site frontend allows users to submit information that can be saved to the database or sent to emails. For example, frontend forms in Joomla are used to create article (com_content), contact form (com_contact), user registration form (com_users).

The concept of displaying the list of items at the frontend is very similar to displaying the list of items at the backend. The View file gets the items from the Model and then the Layout file displays the list of items. You can display in tabular layout or blog layout or any other layout.

After the component is installed, you can create a menu Item to access it. This allows to access the component through a menu rather than having to remember what to type into the address bar. Each view and layout can have its own menu item.

The HtmlView class asks the model for data using the get method. For example, this get method converts the get('Item') call into a getItem() call on the model, which is the method which you have to provide in the model.

When no task is given in the request variables, the default task is display. The BaseController class has such a task. When the display is used, the 'view' variable decides what is displayed on the page.