Hello TAG！

I'm requesting a TAG review of:

• Name: 'unsafe-hashes'
• Specification URL: https://w3c.github.io/webappsec-csp/#unsafe-hashes-usage
• Explainer, Requirements Doc, or Example code: https://docs.google.com/document/d/1_nYS4gWYO2Oh8rYDyPglXIKNsgCRVhmjHqWlTAHst7c/edit?usp=sharing
• Tests: recently added so wpt.fyi has not caught up yet https://github.com/web-platform-tests/wpt/pull/11457 https://wpt.fyi/results/content-security-policy/unsafe-hashes
• Primary contacts: andypaicu@chromium.org, mkwst@chromium.org

Further details (optional):

• Relevant time constraints or deadlines: noe
• I have read and filled out the Self-Review Questionnare on Security and Privacy. The assessment is here.
• I have reviewed the TAG's API Design Principles ^ I have skimmed the two points above but I don't think they apply to this type of feature.

We'd prefer the TAG provide feedback as (please select one):

• open issues in our Github repo for each point of feedback
• open a single issue in our Github repo for the entire review
• leave review feedback as a comment in this issue and @-notify @andypaicu, @mikewest