geolocationRtdProvider: lastfix does not match OpenRTB definition

[lambdarho]

Type of issue

bug

Description

Incorrect information passed in the BidRequest coming from geolocationRtdProvider

The geolocationRtdProvider fetches geo information from the browser and applies lat / lon / lastfix / type to ortb2Fragments.global.device.geo

The problem is that a timestamp is passed to BidRequest.device.geo.lastfix, but that does not match the OpenRTB definition.

The BidRequest.device.geo.lastfix field should be:

Number of seconds since this geolocation fix was established.
Note that devices may cache location data across multiple
fetches. Ideally, this value should be from the time the actual
fix was taken.

Steps to reproduce

Enable the geolocationRtdProvider module, let the browser access navigator.geolocation.getCurrentPosition and look at the value passed in under ortb2Fragments.global.device.geo.lastfix

Test page

Expected results

Calculate the number of seconds from when the geo information was taken and BidRequest was sent.

Actual results

The module currently sends a timestamp so the value is interpreted incorrectly.

Platform details

Prebid.js

Other information

[patmmccann]

I'm declaring this bugfix non-breaking given the recency of the module merge. Thank you for the report. Your bugfix submission is welcome.