{"action":"created","issue":{"url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/53","repository_url":"https://api.github.com/repos/w3c/fxtf-drafts","labels_url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/53/labels{/name}","comments_url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/53/comments","events_url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/53/events","html_url":"https://github.com/w3c/fxtf-drafts/issues/53","id":180194133,"node_id":"MDU6SXNzdWUxODAxOTQxMzM=","number":53,"title":"[filter-effects-2] Backdrop filters should not use BackgroundImage","user":{"login":"grorg","id":47596,"node_id":"MDQ6VXNlcjQ3NTk2","avatar_url":"https://avatars0.githubusercontent.com/u/47596?v=4","gravatar_id":"","url":"https://api.github.com/users/grorg","html_url":"https://github.com/grorg","followers_url":"https://api.github.com/users/grorg/followers","following_url":"https://api.github.com/users/grorg/following{/other_user}","gists_url":"https://api.github.com/users/grorg/gists{/gist_id}","starred_url":"https://api.github.com/users/grorg/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/grorg/subscriptions","organizations_url":"https://api.github.com/users/grorg/orgs","repos_url":"https://api.github.com/users/grorg/repos","events_url":"https://api.github.com/users/grorg/events{/privacy}","received_events_url":"https://api.github.com/users/grorg/received_events","type":"User","site_admin":false},"labels":[{"id":399416073,"node_id":"MDU6TGFiZWwzOTk0MTYwNzM=","url":"https://api.github.com/repos/w3c/fxtf-drafts/labels/Agenda+","name":"Agenda+","color":"000000","default":false},{"id":399415378,"node_id":"MDU6TGFiZWwzOTk0MTUzNzg=","url":"https://api.github.com/repos/w3c/fxtf-drafts/labels/filter-effects-2","name":"filter-effects-2","color":"c5def5","default":false}],"state":"open","locked":false,"assignee":{"login":"chrishtr","id":3453258,"node_id":"MDQ6VXNlcjM0NTMyNTg=","avatar_url":"https://avatars3.githubusercontent.com/u/3453258?v=4","gravatar_id":"","url":"https://api.github.com/users/chrishtr","html_url":"https://github.com/chrishtr","followers_url":"https://api.github.com/users/chrishtr/followers","following_url":"https://api.github.com/users/chrishtr/following{/other_user}","gists_url":"https://api.github.com/users/chrishtr/gists{/gist_id}","starred_url":"https://api.github.com/users/chrishtr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chrishtr/subscriptions","organizations_url":"https://api.github.com/users/chrishtr/orgs","repos_url":"https://api.github.com/users/chrishtr/repos","events_url":"https://api.github.com/users/chrishtr/events{/privacy}","received_events_url":"https://api.github.com/users/chrishtr/received_events","type":"User","site_admin":false},"assignees":[{"login":"chrishtr","id":3453258,"node_id":"MDQ6VXNlcjM0NTMyNTg=","avatar_url":"https://avatars3.githubusercontent.com/u/3453258?v=4","gravatar_id":"","url":"https://api.github.com/users/chrishtr","html_url":"https://github.com/chrishtr","followers_url":"https://api.github.com/users/chrishtr/followers","following_url":"https://api.github.com/users/chrishtr/following{/other_user}","gists_url":"https://api.github.com/users/chrishtr/gists{/gist_id}","starred_url":"https://api.github.com/users/chrishtr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chrishtr/subscriptions","organizations_url":"https://api.github.com/users/chrishtr/orgs","repos_url":"https://api.github.com/users/chrishtr/repos","events_url":"https://api.github.com/users/chrishtr/events{/privacy}","received_events_url":"https://api.github.com/users/chrishtr/received_events","type":"User","site_admin":false}],"milestone":null,"comments":36,"created_at":"2016-09-30T00:21:34Z","updated_at":"2018-11-14T17:51:59Z","closed_at":null,"author_association":"CONTRIBUTOR","body":"Currently, the spec says \"The first filter function or <a element>filter</a> reference in the list takes the element's BackgroundImage as the input image.\"\n\nThis was a mistake on my part. BackgroundImage is defined as the backdrop up to the isolation parent. \n\nWhat we really want is a new term, BackdropImage, which is the backdrop of the element, including all parents and siblings that have been painted up to the point of the filter. There is no isolation.\n"},"comment":{"url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/comments/438755556","html_url":"https://github.com/w3c/fxtf-drafts/issues/53#issuecomment-438755556","issue_url":"https://api.github.com/repos/w3c/fxtf-drafts/issues/53","id":438755556,"node_id":"MDEyOklzc3VlQ29tbWVudDQzODc1NTU1Ng==","user":{"login":"smfr","id":20968,"node_id":"MDQ6VXNlcjIwOTY4","avatar_url":"https://avatars3.githubusercontent.com/u/20968?v=4","gravatar_id":"","url":"https://api.github.com/users/smfr","html_url":"https://github.com/smfr","followers_url":"https://api.github.com/users/smfr/followers","following_url":"https://api.github.com/users/smfr/following{/other_user}","gists_url":"https://api.github.com/users/smfr/gists{/gist_id}","starred_url":"https://api.github.com/users/smfr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/smfr/subscriptions","organizations_url":"https://api.github.com/users/smfr/orgs","repos_url":"https://api.github.com/users/smfr/repos","events_url":"https://api.github.com/users/smfr/events{/privacy}","received_events_url":"https://api.github.com/users/smfr/received_events","type":"User","site_admin":false},"created_at":"2018-11-14T17:51:59Z","updated_at":"2018-11-14T17:51:59Z","author_association":"NONE","body":"> @tabatkins, in particular mix-blend-mode, which seems to my eye to be very similar to backdrop-filter in this regard. I don’t know why the behavior there (mix-blend-mode respects isolation) shouldn’t be the same behavior here, for backdrop-filter.\r\n\r\nHistorically I think mix-blend-mode should have affected everything behind it, but for ease of implementation it also chose to stop at the isolation group ancestor. @cabanier probably remembers more."}}
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