When does the first browsing context create ?

[scw00]

https://html.spec.whatwg.org/multipage/browsing-the-web.html#navigating-across-documents

To navigate a browsing context browsingContext to a resource resource, with an optional boolean exceptionsEnabled (default false), an optional history handling behavior historyHandling (default "default"), an optional policy container-or-null historyPolicyContainer (default null) and an optional string navigationType (default "other"):​

Hi, It seems like the navigated algorithm started when I enter a url. The browsing context was passed as parameter to this algorithm.

It make me confused when browsing context creates ?

[domenic]

This is done by the "create a new browsing context" algorithm: https://html.spec.whatwg.org/#creating-a-new-browsing-context

Hope this helps!

[scw00]

thanks

[scw00]

Hi @domenic , "create a new browsing context" must given a browsing context group as parameter. And the bc group creation is relate to top level browsing context creation. Finally top level bc creation is depend on the navigate algorithm ("obtain a browsing context to use for a navigation response" actually, indirectly called from "navigate"). In these call stack, the initialize bc was embedded into "navigation params " and passed to "create top level browsing context" (see https://html.spec.whatwg.org/multipage/browsing-the-web.html#initialise-the-document-object)

So it make me confusing again, when does the initialize bc create ?

[domenic]

If you click on a term, you can find all its usage sites. So e.g. if you click on "create a browsing context" you can see all its callers and how they set things up.