TYPO3 Core

If the base URL contains a tilde (e.g. in "localhost/~test/"), an exception is thrown:

InvalidArgumentException: NAMEPREP: Prohibited input U+0000007E in typo3_src-8.6.1/vendor/mso/idna-convert/src/Punycode.php:335
Stack trace:
#0 typo3_src-8.6.1/vendor/mso/idna-convert/src/Punycode.php(187): Mso\\IdnaConvert\\Punycode->namePrep(Array)
#1 typo3_src-8.6.1/vendor/mso/idna-convert/src/IdnaConvert.php(327): Mso\\IdnaConvert\\Punycode->encode(Array)
#2 typo3_src-8.6.1/typo3/sysext/core/Classes/Utility/GeneralUtility.php (1088): Mso\\IdnaConvert\\IdnaConvert->encode(Array)
#3 typo3_src-8.6.1/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php(5917): TYPO3\\CMS\\Core\\Utility\\GeneralUtility::idnaEncode('localhost/~test...')
#4 typo3_src-8.6.1/typo3/sysext/frontend/Classes/ContentObject/ContentObjectRenderer.php(6232): TYPO3\\CMS\\Frontend\\ContentObject\\ContentObjectRenderer->typoLink('|', Array)
#5 typo3_src-8.6.1/typo3/sysext/extbase/Classes/Mvc/Web/Routing/UriBuilder.php(705): TYPO3\\CMS\\Frontend\\ContentObject\\ContentObjectRenderer->typoLink_URL(Array)

The punnycode encoding must be used for the domain part only.