Breaking: #96501 - prefixLocalAnchors option in HTMLParser removed

See forge#96501

Description

The property prefixLocalAnchors in TypoScript's HTMLParser is removed without substitution.

This is a leftover from times before there was Site Handling and absolute URLs, related to config.prefixLocalAnchors which was removed in TYPO3 v8.

The option has many side-effects such as relying on the request when parsing HTML (which behaves differently in TYPO3 Backend and in Frontend).

Impact

Setting this TypoScript option has no effect anymore.

Affected Installations

TYPO3 installation having TypoScript configured with this option activated.

Migration

None.