Prebid core: bidder-specific control over storage access via bidderSettings.storageAllowed

[dgirardi]

Type of change

• Feature
• Does this change affect user-facing APIs or examples documented on http://prebid.org?

Description of change

This introduces the ability to turn on or off StorageManager functionality for specific bidders through bidderSettings.storageAllowed.

Resolves #7280

Other information

Docs PR: prebid/prebid.github.io#3540

[robertrmartinez]

should this also try to use the moduleName as well?

When I try this:

        pbjs.bidderSettings = {
            rubicon: {
                storageAllowed: false
            }
        };

And use the rubiconAnalyticsAdapter, I still see the module is allowed to set its storage:

[robertrmartinez]

Also, is there a way to set this globally? as to deny storageAllowed for all in bidderSettings?

        pbjs.bidderSettings = {
            standard: {
                storageAllowed: false
            },
        };

for example

[dgirardi]

@robertrmartinez, my understanding is that bidderSettings should control bid adapters, not analytics adapters (which is where rubicon controls its cookie from). That was the motivation for adding the new bidderCode parameter to the storage layer. The moduleName is treated as it was before, it can disable storage but you'd have to use consent management.

and yes, bidderSettings.standard is the fallback - the logic is in bidderSettings.js (#7712)

[robertrmartinez]

Ok, so even when I set

        pbjs.bidderSettings = {
            standard: {
                storageAllowed: false
            },
        };

It is not expected to stop Analytic Adapters from storing?

Ok 👍

[dgirardi]

well, I am not expecting it, but I'm not sure if a publisher would. Maybe we need to discuss it in the PMC?

[robertrmartinez]

Though, I would say, if a pub just wants to stop storage across the board, it kind of sucks they have to use the consentManagement module, if they do not even want consentManagement installed.

But I'll leave that to the deciders!

[dgirardi]

Updated prebid/prebid.github.io#3540 to be more explicit on what this setting does.

[robertrmartinez]

👍 We spoke about this in the PMC

[patmmccann]

@dgirardi is it possible to make localstorage only an option? Related: #8140 (review)

Publishers may wish to prevent Kargo from using cookies but allow local storage

[dgirardi]

@patmmccann yes, as long as we agree on the setting syntax. We can have an update where instead of just true/false we understand also strings like localStorage or cookies for example?