Achieve dotall regex in javascript. http://stackoverflow.com/questions/1068280/javascript-regex-multiline-flag-doesnt-work/1068307

dotallRegex.js

// You are looking for the /.../s modifier, also known as the dotall modifier. It forces the dot . to also match newlines, which it does not do by default.
// The bad news is that it does not exist in Javascript. The good news is that you can work around it by using a character class (e.g. \s) and its negation (\S) together, like this:

var htmlStringWithScriptTags = "sdf <script>test fsajkdfn</script> a sdasda <script> sdfsdfsdf \n \
  sdfsdfsd </script> sjkndfjkasnd <script> sdfsdfsdf \n \
  sdfsdfsd </script>sjkndfjkasnd <script> sdfsdfsdf \n \
  sdfsdfsd </script>";

// incorrect
htmlStringWithScriptTags.replace(/<script.*?<\/script>/g, ''); 

/* outputs:
"sdf  a sdasda <script> sdfsdfsdf 
   sdfsdfsd </script> sjkndfjkasnd <script> sdfsdfsdf 
   sdfsdfsd </script>sjkndfjkasnd <script> sdfsdfsdf 
   sdfsdfsd </script>"
*/


// correct
htmlStringWithScriptTags.replace(/<script[\s\S]*?<\/script>/g, ''); 

// outputs: "sdf  a sdasda  sjkndfjkasnd sjkndfjkasnd "