TYPO3 Core

When activating the query parameter selector via RTE.default.buttons.link.queryParametersSelector.enabled = 1 one is able to append, well, query parameters to internal links.

This works all nice and fine until this field contains a forward slash, eg. return_url=path/to/something.

Say with return_url=lala the link is rendered as expected: http://test.local/login/?return_url=lala

Now when I enter return_url=path/to/something this is the result: http://test.local/95,0,&return_url=path/to/something

I tested this with pure TypoScript links and can confirm that this happens there as well. I does not happen when I configure the query string via additionalParams. So it seems to be a general problem with the shorthand notation.

# Breaks
10 = TEXT
10.value = Link Test
10.typolink.parameter = 95,0,&return_url=path/to/page

# Breaks (url-encoded)
20 = TEXT
20.value = Link Test (url-encoded)
20.typolink.parameter = 95,0,&return_url=path%2Fto%2Fpage

# Breaks (escaped)
30 = TEXT
30.value = Link Test (escpaed)
30.typolink.parameter = 95,0,&return_url=path\/to\/page

# Works
40 = TEXT
40.value = Link Test (additionalParams)
40.typolink.parameter = 95,0
40.typolink.additionalParams = &return_url=path/to/page

This also shows that the link breaks if there are percent signs present.

I investigated further and think that the culprit can be found in TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer. It seems to think that this link represents a local file (around line 5971; because it has a slash in it?) and doesn't seem to resolve it at all.

Is this expected behavior? And if not, how am I supposed to enter things like forward slashes there? Doesn't seem to be possible without resorting to additionalParams, which is not possible inside the RTE.