The Access-Control-Allow-Headers header is sent by the server to let the client know which headers it supports for CORS requests. The value of Access-Control-Allow-Headers should be a comma-delineated list of header names, such as X-Custom-Information or any of the standard but non-basic header names (which are always allowed)....Skip to main content Skip to search Skip to select language Article...
Learn about the CompositionEvent interface, including its constructor, properties, and methods, specifications and browser compatibility....Skip to main content Skip to search Skip to select language Article...
A constructor belongs to a particular class object that is instantiated. The constructor initializes this object and can provide access to its private information. The concept of a constructor can be applied to most object-oriented programming languages. Essentially, a constructor in JavaScript is usually declared at the instance of a class....Skip to main content Skip to search Skip to select language Article...
Learn about the SVGMissingGlyphElement interface, including its properties and methods, specifications and browser compatibility....Skip to main content Skip to search Skip to select language Article...
A browser plugin is a software component that users can install to handle content that the browser can't support natively. Browser plugins are usually written using the NPAPI (Netscape Plugin Application Programming Interface) architecture....Skip to main content Skip to search Skip to select language Article...
The ::-webkit-slider-runnable-track CSS pseudo-element represents the "track" (the groove in which the indicator slides) of an ....Skip to main content Skip to search Skip to select language Article...
The JavaScript exception "rest parameter may not have a default" occurs when a rest parameter has a default value. Because the rest parameter always creates an array, the default value would never apply....Skip to main content Skip to search Skip to select language Article...
The HTTP Permissions-Policy header publickey-credentials-get directive controls whether the current document is allowed to access the Web Authentication API to retrieve public-key credentials, i.e., via navigator.credentials.get({publicKey})....Skip to main content Skip to search Skip to select language Article...
Learn about the CDATASection interface, including its properties and methods, specifications and browser compatibility....Skip to main content Skip to search Skip to select language Article...
Learn about the SharedStorageWorkletGlobalScope interface, including its properties and methods, code examples, specifications, and browser compatibility....Skip to main content Skip to search Skip to select language Article...