tracekit/tracekit.js
/**
     * Attempts to retrieve source code via XMLHttpRequest, which is used
     * to look up anonymous function names.
     * @param {string} url URL of source code.
     * @return {string} Source contents.
     */
Attempts to retrieve source code via XMLHttpRequest, which is used
to look up anonymous function names.
@param {string} url URL of source code.
@return {string} Source contents.
Attempts to retrieve source code via XMLHttpRequest which is used to look up anonymous function names . @param { string } url URL of source code . @return { string } Source contents .
function loadSource(url) {
        if (typeof url !== 'string') {
          return [];
        }
        return ''; 
    }
function loadSource ( url ) { if ( typeof url !== 'string' ) { return [ ] ; } return '' ; }
Attempts to retrieve source code via XMLHttpRequest, which is used
 to look up anonymous function names.
Attempts to retrieve source code via XMLHttpRequest which is used to look up anonymous function names .
// Remote fetching disabled due to deprecated synchronous XHR support in browsers