Skip to toolbar

Community & Business Groups

Misconception: Widgets lack an origin

As well as being able to use a classic “” style origin, widgets can also use a custom scheme called the Widget URI scheme that typically looks like this:


The widget URI scheme works like a “fake” HTTP server: sending back local files from inside a widget package (e.g., an image) by simulating a HTTP responses.

The misconception about origin arises because people don’t really understand what an origin is: they think it means (i.e., a website). Thankfully, the HTML Standard makes it clear by defining an origin as:

opaque identifiers or tuples consisting of a scheme component, a host component, a port component, and optionally extra data.

In other words, widget:// makes for a perfectly valid origin.

Other posts in this series:

Leave a Reply

Your email address will not be published. Required fields are marked *

Before you comment here, note that this forum is moderated and your IP address is sent to Akismet, the plugin we use to mitigate spam comments.