# Security and Privacy Questionnaire for CSS Gap Decorations

https://www.w3.org/TR/security-privacy-questionnaire/#questions

## 2.1 What information might this feature expose to Web sites or other parties, and for what purposes is that exposure necessary?

This feature does not expose any new information to Web sites or other parties.

## 2.2 Do features in your specification expose the minimum amount of information necessary to enable their intended uses?

Yes (none).

## 2.3 How do the features in your specification deal with personal information, personally-identifiable information (PII), or information derived from them?

No handling of personal information, PII, or information derived from them.

## 2.4 How do the features in your specification deal with sensitive information?

No handling of sensitive information.

## 2.5 Do the features in your specification introduce new state for an origin that persists across browsing sessions?

No.

## 2.6 Do the features in your specification expose information about the underlying platform to origins?

No.

## 2.7 Does this specification allow an origin to send data to the underlying platform?

No.

## 2.8 Do features in this specification enable access to device sensors?

No.

## 2.9 Do features in this specification enable new script execution/loading mechanisms?

No.

## 2.10 Do features in this specification allow an origin to access other devices?

No.

## 2.11 Do features in this specification allow an origin some measure of control over a user agent’s native UI?

No.

## 2.12 What temporary identifiers do the features in this specification create or expose to the web?

None.

## 2.13 How does this specification distinguish between behavior in first-party and third-party contexts?

No distinction; no special considerations for use of the feature by third-party resources.

## 2.14 How do the features in this specification work in the context of a browser’s Private Browsing or Incognito mode?

No change to behavior in Private Browsing or Incognito modes.
No features of the specification that would allow for correlation of a single user's activity across normal and private browsing / incognito modes.

## 2.15 Does this specification have both "Security Considerations" and "Privacy Considerations" sections?

Yes.

## 2.16 Do features in your specification enable origins to downgrade default security protections?

No.

## 2.17 How does your feature handle non-"fully active" documents?

Gap decorations are purely a painted effect and should be handled no differently from existing painted effects such as backgrounds and borders.

## 2.18 What should this questionnaire have asked?

No special considerations for this feature.
