** functionality, just nice-to-haves. Only call this once per page.
*/
void document_emit_js(void){
  if(!builtin_bundle_all_fossil_js_apis()){
    builtin_emit_fossil_js_apis("dom", "copybutton",
                                "pikchr", 0);
  }
  style_emit_script_tag(0,0);
  style_script_begin(__FILE__,__LINE__);
  CX("window.addEventListener('load', "
     "()=>window.fossil.pikchr.addSrcView(), "
     "false);\n");
  style_emit_script_tag(1,0);
  style_script_end();
}

/*
** Guess the mime-type of a document based on its name.
*/
const char *mimetype_from_name(const char *zName){
  const char *z;