Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The windowAttribution read-only property of the PerformanceScriptTiming interface returns an enumerated value describing the relationship of the container (i.e., either the top-level document or an <iframe>) in which the long animation frame (LoAF)-causing script was executed, relative to the window running the current document.
An enumerated value, which can be one of:
"ancestor"The current document is a descendant of the document in which the script was executed, embedded inside it in an <iframe>.
"descendant"The script was executed in a descendant document embedded inside the current document in an <iframe>.
"other"The location of the document the script was executed in could not be determined.
"same-page"The script was executed in a version of the current document embedded within the current document in an <iframe>.
"self"The script was executed in the current document.
See Long animation frame timing for examples related to the Long Animation Frames API.