forceAbsolutUrl sets always http as protocol if url_scheme is "default" - not the active protocol
The field "url_scheme" in pages has three options "default" (means: Both of them, build as it is now, http: always http, https: always https).
But if you use forceAbsoluteUrl at a default page which has "default" as option and is called per https the link will be generated with "http".
Updated by Christoph Gross almost 8 years ago
Current Patch broke Typo3 6.2 because of t3lib_div depreciation:
PHP Fatal error: Class 'TYPO3\\CMS\\Frontend\\ContentObject\\t3lib_div' not found in /var/www/typo3/versions/typo3_src-6.2-master-2013-11-09/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php on line 6096
Should be GeneralUtility::getIndpEnv('TYPO3_SSL') on line 6096