function strip_tags(str){
   const tags = ['a', 'em', 'div', 'span', 'p', 'i', 'button', 'img' ];
   const tagsAndContent = ['picture', 'script', 'noscript', 'source'];  	 
   for(tag of tagsAndContent){ 
      let regex = new RegExp( '<' + tag+ '.*?</' + tag + '>', 'gim');
      str = str.replace( regex ,"");
   }
   for(tag of tags){
      let regex1 = new RegExp( '<' + tag+ '.*?>', 'gim');
      let regex2 = new RegExp( '</' + tag+ '>', 'gim');
      str = str.replace(regex1,"").replace(regex2,""); 
   } 
   return str;
}