qdoc warning re JavaScript code with literals e.g.: ''

Since qdoc does not have a pure JavaScript parser there is need to write all documentation for JavaScript functions in pure qdoc however qdoc gets confused by empty literal as shown in the example below because it is still treat the code as C/C++ code. This issue is present in earlier versions of qdoc however Qt5's qdoc is being used.

/*!
  \page somepage.html
  \title some title

  Some qdoc code 
*/


function foo() {
  var a = '';
}