Where does (no domain)> extensions :: name happen?
In the sources tab in DevTools, some pages have a folder (no domain) with various extensions inside them. The source seems to indicate that they are chrome extensions, but I cannot find any information about them. For example, this page lists many extensions including extensions :: unload_event, extensions :: messaging, extensions :: Event, extensions :: last_error, etc.
What is it? Who created them? Is this something that Chrome does, or is it something that frontend developers are responsible for including? Is there any documentation about these specific extensions?
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These files extensions::[name]
are part of the extension framework implementation and are shipped with Chrome. Extension developers do not need to be aware of their existence.
You can view their source at https://chromium.googlesource.com/chromium/src/+/master/extensions/renderer/resources .
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