`htmx.config.ignoreTitle = true` is in conflict with OOB-swapped `title` top element

[metametadata]

Version 2.0.9.

Steps

1. htmx.config.ignoreTitle = true is set.
2. The web page has an OOB-swappable title tag in head block: <title hx-swap-oob="outerHTML" id="document-title">One</title>.
3. Perform an htmx swap where the response contains <title hx-swap-oob="outerHTML" id="document-title">Two</title> as one of the "top" tags in the response.

Expected

The tab title is Two.

Actual

The tab title is One.

Why is this needed?

I use OOB-swappable titles as a workaround for another bug: #3726. And htmx.config.ignoreTitle = true is set to nudge the developers to use this pattern consistently until the bug is fixed.

Notes

Setting htmx.config.ignoreTitle = false or wrapping the title in the response with, say, div helps.

[MichaelWest22]

Yes htmx 2 is designed to handle any title tag placed in as a top level element in the response as a method to allow title setting easily. title tags are not really meant to be in this position normally in the DOM so we have to remove these parsed title tags form the response and use them to set the title. But if you block title assignments with ignoreTitle then these title tags will do nothing. having a oob attribute on these top level title tags will not work sorry as they will always be parsed out of the response.

a simple way to replace the title contents in the head without title parsing issues is to use a hx-swap-oob with innerHTML like this:

<div hx-swap-oob="innerHTML:#document-title">Two</div>