Bug #89378

Updated by Sybille Peters almost 2 years ago

The function ExternalLinktype::preprocessUrl truncates some URLs into an empty string.  

 The function was originally introduced in order to enable URLs with Umlaut in domains, e.g. https://äh.de 

 These are some of the URLs the function converts into empty strings: 

 <pre> 
 * https://www.nbank.de/Unternehmen/Ausbildung-Qualifikation/Weiterbildung-in-Niedersachsen/ 
 * https://www.oldenburg.de/startseite/wirtschaft/wirtschaftsfoerderung/beratung-foerderung/gruenderberatung/gruenderforen.html 
 * http://www.nwzonline.de/tv?bcpid=1701167454001&amp;amp;amp;bckey=AQ~~,AAAAAGL7LqU~,aXlKNnCf9d9Tmck-kOc4PGFfCgHjM5JR&amp;amp;amp;bctid=1040702768001 
 * http://www.uni-bremen.de/universitaet/die-uni-im-ueberblick/lageplan/gebaeude/building/120 

 </pre> 
 These will then falsely be reported as broken links. 

 The function preprocessUrl was originally introduced to handle domains with special characters, see #55155

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