Cross-site scripting is a very common injection type of web application vulnerability. It allows attackers to inject any type of client-side script which is then executed by the victims' browsers in their browsing contexts.
It gives the user a better experience as his input is checked before sending it to the server meaning there is less time to wait for feedback. The area element, for consistency with the a and link elements, now also has the hreflangtype and rel attributes.
The base element can now have a target attribute as well, mainly for consistency with the a element. This is already widely supported.
The meta element has a charset attribute now as this was already widely supported and provides a nice way to specify the character encoding for the document. A new autofocus attribute can be specified on the input except when the type attribute is hiddenselecttextarea and button elements.
It provides a declarative way to focus a form control during page load. Using this feature should enhance the user experience compared to focusing the element with script as the user can turn it off if the user does not like it, for instance.
A new placeholder attribute can be specified on the input and textarea elements. It represents a hint intended to aid the user with data entry. These elements can now be placed anywhere on a page, not just as descendants of the form element, and still be associated with a form.
It indicates that the user has to fill in a value in order to submit the form. For selectthe first option element has to be a placeholder with an empty value. The input element has several new attributes to specify constraints: As mentioned before it also has a new list attribute which can be used together with the datalist element.
The input and textarea elements have a new attribute named dirname that causes the directionality of the control as set by the user to be submitted as well.
The textarea element also has three new attributes, maxlengthminlength and wrap which control max input length and submitted line wrapping behavior, respectively. The form element has a novalidate attribute that can be used to disable form validation submission i.
The input and button elements have formactionformenctypeformmethodformnovalidateand formtarget as new attributes. If present, they override the actionenctypemethodnovalidateand target attributes on the form element.
The input element also has the new minlength attribute. The script element has a new attribute called async that influences script loading and execution. The html element has a new attribute called manifest that points to an application cache manifest used in conjunction with the API for offline Web applications.
The link element has a new attribute called sizes. It can be used in conjunction with the icon relationship set through the rel attribute; can be used for e.
The ol element has a new attribute called reversed.
When present, it indicates that the list order is descending. The iframe element has new attributes called sandbox and srcdoc which allow for sandboxing content, e.
The object element has a new attribute called typemustmatch which allows safer embedding of external resources. The img element has a new attribute called crossorigin to use CORS in the fetch and if it is successful, allows the image data to be read with the canvas API. Several attributes from HTML4 now apply to all elements.
These are called global attributes: There are also several new global attributes: The contenteditable attribute indicates that the element is an editable area.
The user can change the contents of the element and manipulate the markup. Web developers can define any attribute they want as long as they prefix it with data- to avoid clashes with future versions of HTML.
These are intended to be used to store custom data to be consumed by the Web page or application itself. They are not intended for data to be consumed by other parties e. The hidden attribute indicates that an element is not yet, or is no longer, relevant.
As Mauvis Leford and TK pointed out, the r-bridal.com adds a line-break character at the end of the line (\n) . writeln adds a new line at the end of the text like a tag. write does not. As Bob said.
Here's a link that will provide more information and an example if that helps. Our mission is to bring affordable technology education to people everywhere in order to help them achieve their dreams and.
Development Model. The HTML4 specification reached Recommendation status before it was completely implemented in user agents. HTML4 still is not completely implemented, because it contains various bugs that have been fixed in the current HTML specification, which user agents are much closer to implementing than HTML4.