The first pre-beta version of Firefox 4.0, released today, includes a
minimal version of HELD, as a location provider for the W3C
Geolocation API. The profile of HELD implemented is as follows:
-- Requests have no <locationType>, but they do have a <measurements>
object with a set of WiFi measurements
-- The only responses that are used are ones that contain a
<gs:Circle>, representing a point with an uncertainty radius.
-- Civic addresses and location URIs are not used.
HELD is not enabled by defuault. To use it:
1. Open about:config
2. Set geo.wifi.protocol = 1
3. Set geo.wifi.uri to the URI of a HELD server. For testing, I have
been using <http://geopriv.dreamhosters.com/cgi-bin/lis4.pl>, which
proxies requests through to the Google location server.
Once this is set up, queries to the W3C Geolocation API should
initiate a HELD query to the specified server.
You can download the pre-release builds here:
<http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/>
Finally, of course, this being pre-beta software, there's a minor bug
to fix. Inside the 'components' directory for Firefox, find
NetworkGeolocationProvider.js, and change line 354 from this:
switch (this.protocol) {
to this:
switch (protocol) {
Everything should of course work perfectly :)
--Richard
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