theme-default: Deprivation of focus when loading the page.

[azu]

I notice that creating https://stackblitz.com/edit/honkit-template?file=README.md

It is a bit cumbersome to lose focus on the editor when changing documents.

Probably, following step got the focus.

honkit/packages/@honkit/theme-default/src/js/theme/navigation.js

Lines 375 to 379 in 3d9392b

	if ($pageWrapper && $pageWrapper[0]) {
	// use Native focus
	// https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus
	$pageWrapper[0].focus({ preventScroll: true });
	}

Originally posted by @azu in #366 (comment)

[azu]

I do know why .focus().

If https://stackblitz.com/edit/honkit-template?file=README.md (the case of iframes), we can probably get around this by using https://developer.mozilla.org/en-US/docs/Web/API/Document/activeElement.