bidsBackHandler arguments are incomplete

[natanavra]

Type of issue

Bug

Description

bidsBackHandler is called with an empty object when no bids are available (added after #3197).
bidsBackHandler should be called with the auction object to allow to refresh relevant slots.
e.g. if several auctions are initiated one after the other on multiple dynamically loaded slots, each slot / group of slots should be refreshed separately, calling a generic refresh would cause all slots to refresh - and that's not wanted behavior.

Steps to reproduce

1. Call pbjs.requestBids with timeout of 10 so that all auctions timeout and a bidsBackHandler with 1-2 adUnits, not all.
2. Wait for auction to end
3. bidsBackHandler called with empty object as first argument.

Test page

const adUnits = [{
	code: slot.getSlotElementId(),
  mediaTypes: {
    banner: {
      sizes: [320, 50]
    }
  },
  bids: getBidders(),
}];

pbjs.requestBids({
  adUnits: adUnits,
  bidsBackHandler: initAdServer,
  timeout: 10,
});

function initAdServer(bids) {
  // bids == {}
}

Expected results

First bidsBackHandler parameter to be a list of bids for each adUnit, or the auction object sent in auctionEnd - so it can be used to identify which adUnits bidded on.

Actual results

Empty object.

Platform details

Prebid 3.18.0
Chrome, Mac OS

Other information

Related:

• When "No valid bid requests returned for auction" bidsBackHandler never gets called #3197
• Fixes #3197 - call auctionDone() when 'No valid bid requests returned for auction' #3198
• bidsBackHandler firing before bids are back or timeout reached #1414

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.