autofocus attribute does not work on contenteditable

Phenomenon

The autofocus attribute, which automatically focuses form inputs on page load, does not work on contenteditable elements. There is no built-in way to automatically focus a contenteditable region when a page loads.

Reproduction example

1. Create a contenteditable div with autofocus attribute.
2. Load the page.
3. Observe whether the contenteditable receives focus automatically.

Observed behavior

• In Chrome on Windows, the autofocus attribute is ignored on contenteditable.
• The contenteditable does not receive focus automatically.
• Manual JavaScript focus() call is required.

Expected behavior

• The autofocus attribute should work on contenteditable.
• Or, there should be a standard way to auto-focus contenteditable regions.
• Focus should be handled consistently with form inputs.