Is it possible to use the provided input value as a preloadparams[] value to pre-fill the template with it?
Topic on Extension talk:InputBox/Archive 2
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@Andre601: Yes it is.
- You might need to embed this into
{{#tag:inputbox}}
for expanding a template value within<inputbox>
content. - w:de:Template:Neuer Abschnitt/URL is trying such things you asked for a URL.