"perform a non-traverse navigation API navigation" and lack of source browsing context

[annevk]

Since you don't track the source browsing context, doesn't that mean that referrer ends up being set incorrectly? There might also be some problems with per-document policies, such as CSP.

[domenic]

Well, it means referrer will be set as if the browsing context navigated itself. Basically there is no distinction in this API between frames[0].navigation.navigate(...) and frames[0].eval("navigation.navigate(...)"), like there is with other APIs. The referrer is always equal to the current URL of the browsing context. That seems OK to me.

See also #110