Standard keyboard shortcuts do not work in the web inspector. This is most noticeable for cut/copy/paste (Ctrl+X, Ctrl+C, Ctrl+V), which works only when using the mouse to open the context menu. Pressing the keys does nothing. But most other standard shortcuts do not work either, e.g. Ctrl+A does not select all text. Oddly, Home and End shortcuts both work in the command entry (to jump to start or end of the entry). Suspiciously, those shortcuts don't require use of Ctrl. I wonder if web inspector shortcuts are dependent on macOS Command by mistake....