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Web Origin

Overview#

Web Origin is described in RFC 6454 as "Roughly speaking", two URIs are part of the same Web Origin (i.e., represent the same principal) if they have the same URI Scheme, hostname, and port.

In this context, "other origins" means the URL being accessed differs from the location that the JavaScript is running from, by having:

Web Origin is the HTTP Request Header "Origin"

Web Origin is used in the Fetch API.

More Information#

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