Correct lazy loading attribute

_source/handbook/04_frames.md

@@ -113,7 +113,7 @@ After navigation finishes, a Frame will set the `[complete]` attribute on the
 
 ## Lazy-Loading Frames
 
-Frames that aren't visible when the page is first loaded can be marked with `loading="lazy"` such that they don't start loading until they become visible. This works exactly like the `lazy=true` attribute on `img`. It's a great way to delay loading of frames that sit inside `summary`/`detail` pairs or modals or anything else that starts out hidden and is then revealed.
+Frames that aren't visible when the page is first loaded can be marked with `loading="lazy"` such that they don't start loading until they become visible. This works exactly like the `loading="lazy"` attribute on `img`. It's a great way to delay loading of frames that sit inside `summary`/`detail` pairs or modals or anything else that starts out hidden and is then revealed.
 
 
 ## Cache Benefits to Loading Frames