In other words, in some cases, a URL request 306 includes localhost URL (for example, “l(fā)ocalhost”) and a port number. The browser extension 304 parses the URL request 306 and generates a modified URL request 308. The modified URL request 308 includes an alias URL replacing the localhost URL and the same port number as in the original URL request 306. For example, the original URL request 306 entered by the user can be “l(fā)ocalhost:8000,” and the modified URL request 308 is “bs-local.com:8000.” The URL request can include other portions in addition to or instead of a port number. For example, some URL requests include a localhost URL plus path parameters. In these and similar scenarios, the browser extension 304 generates the modified URL request 308 in the same manner, as described above. To generate the modified URL request, the browser extension 304 replaces the localhost portion of the URL request with an alias URL and concatenates and/or adds the additional elements or portions of the original URL request to the alias URL unchanged. For example, a URL request “l(fā)ocalhost:8000/health/” can be modified to “bs-local.com:8000/health/.”