11.8.5 Fullscreen Window, step 5

[theIDinside]

11.8.5 Fullscreen Window

5. Call fullscreen an element with session's current top-level browsing context's active document's document element.

Step 5 mentions calling the fullscreen an element steps. Is this really what the specification means? Because just fullscreen an element doesn't resize any windows, it only sets the element's fullscreen flag and adds it to the top layer. Is the specification meaning to say the following?

5. requestFullscreen() with session's current top-level browsing context's active document's document element. ?