If invalid, it is handled as if the enumerated keyword anonymous was used. without sending the Origin HTTP header), preventing its non-tainted usage. If the attribute is not present, the resource is fetched without a CORS request (i.e. If the server does not give credentials to the origin site (through Access-Control-Allow-Credentials HTTP header), the resource will be tainted and its usage restricted. a cookie, certificate, and/or HTTP Basic authentication is performed). with an Origin HTTP header) is performed along with a credential sent (i.e. If the server does not give credentials to the origin site (by not setting the Access-Control-Allow-Origin HTTP header) the resource will be tainted and its usage restricted.Ī cross-origin request (i.e. no cookie, X.509 certificate, or HTTP Basic authentication). with an Origin HTTP header) is performed, but no credential is sent (i.e. This enumerated attribute indicates whether CORS must be used when fetching the resource.ĬORS-enabled images can be reused in the element without being tainted.Ī cross-origin request (i.e. render: The rendering of content on the screen is blocked.The operations that are to be blocked must be a space-separated list of blocking attributes listed below. This attribute explicitly indicates that certain operations should be blocked on the fetching of an external resource. Srcset or imageset attributes, SVG elements, to contain the crossorigin attribute, see CORS-enabled fetches.
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