clear img src

www/js/autodoc.js

@@ -251,6 +251,7 @@ function page_load_document(args) {
   $('.autodoc_document_empty').addClass('d-none');
   $('.autodoc_document_body').removeClass('d-none');
 
+  $('.autodoc_document_image').attr('src','');
 
   $.getJSON(
     conf.openapi + "/documents/" + docid,