* SRV-style server discovery, and also to allow eg. Firefox
* to run pkg-related stuff given a pkg+foo:// URL.
*
* Warn if using plain http://, https:// etc with SRV
* Error if using plain http://, https:// etc with SRV
*/
if (strncmp(URL_SCHEME_PREFIX, url, strlen(URL_SCHEME_PREFIX)) == 0) {