Góðan dag TAG！

I'm requesting a TAG review of:

• Name: "Modern" reading API for Blob and File similar to Fetch's Body mixin
• Specification URL: https://github.com/w3c/FileAPI/pull/117
• Explainer, Requirements Doc, or Example code: [url]
• Tests: In progress in https://github.com/web-platform-tests/wpt/pull/15984
• Primary contacts: @mkruisselbrink

Further details (optional):

• Relevant time constraints or deadlines: We're currently implementing this in Chrome and hope to ship this soon
• I have read and filled out the Self-Review Questionnare on Security and Privacy. N/A, feature doesn't add any new functionality.
• I have reviewed the TAG's API Design Principles

You should also know that...

[please tell us anything you think is relevant to this review]

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

• open issues in our Github repo for each point of feedback (although until the PR lands, commenting on the PR directly is probably better)
• open a single issue in our Github repo for the entire review
• leave review feedback as a comment in this issue and @-notify [github usernames]

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