У вашего броузера проблема в совместимости с HTML5
This Tutorial will give you answer of below questions.
How to create WEB API ?
How to create restful service?
How to create web api with entity framework and MS SQL?
How to create api using C#?
How to create WEB API in Visual studio?
What is RESTful service?
Why Restful service?
This tutorial show how you can create a restful api using C#, Entity frame work and SQL.
CRUD operations using WEB API C#
Representational state transfer (REST) or RESTful web services are a way of providing interoperability between computer systems on the Internet. REST-compliant Web services allow requesting systems to access and manipulate textual representations of Web resources using a uniform and predefined set of stateless operations. Other forms of Web services exist which expose their own arbitrary sets of operations such as WSDL and SOAP.[1]
"Web resources" were first defined on the World Wide Web as documents or files identified by their URLs, but today they have a much more generic and abstract definition encompassing every thing or entity that can be identified, named, addressed or handled, in any way whatsoever, on the Web. In a RESTful Web service, requests made to a resource's URI will elicit a response that may be in XML, HTML, JSON or some other defined format