title: Latex biblatex: bibliography titles aren't doing a break line, they overflow instead [ ]
body: <p>I recently discovered a problem in my bibliography and I somehow can't solve it. It's appearing when the titles are too long, but its working with URLs normally as you see in the 2nd example as long the as the title is short enough.</p>
  
  <p>It seems that symbols like "[]" beeing generated from something and the log is giving me 2x Overfull \hbox (X pt too wide) in paragraph.</p>
  
  <p><img src="https://i.stack.imgur.com/Tfbxn.jpg" alt="generated latex document"></p>
  
  <p>setup: <code>document.tex</code> and <code>bib/literature.bib</code></p>
  
  <p>settings: pdfLatex (using biber and texindy)</p>
  
  <p>Minimal example:</p>
  
  <pre><code>\documentclass[
      11pt,
      a4paper
  ]{scrreprt}
  
  % add bibliography
  \usepackage[style=alphabetic, sorting=anyt]{biblatex}
  \addbibresource{bib/literature.bib}
  
  \usepackage[colorlinks, urlcolor=blue]{hyperref}
  
  \begin{document}
      \cite{Gaedke}
      \cite{IOT}
  
      \printbibliography
  \end{document}
  </code></pre>
  
  <p>literature.bib</p>
  
  <pre><code>@online{Gaedke,
      author = {Gaedke, Martin and Heil, Andreas},
      title = {{GET /dgs HTTP/1.1 Host: www.WebComposition.net.}},
      url = {http://www.mendeley.com/research/dgs-http11-host-wwwwebcompositionnet/},
      urldate={2018-08-19}
  }
  @online{IOT,
      author = {Litzel, Nico },
      title = {Was ist das Internet of Things?},
      url = {https://www.bigdata-insider.de/was-ist-das-internet-of-things-a-590806/},
      urldate={2018-08-19}
  }
  </code></pre>