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June 2, 2017 16:58
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Can we initialize a ResizeObserver in the head, and start observing elements as they are parsed on first load with a MutationObserver?
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| <!doctype html> | |
| <head> | |
| <title>FoUC-free container queries</title> | |
| <script> | |
| const ro = new ResizeObserver( ( entries) => { | |
| // do container query stuff | |
| } ); | |
| const mo = new MutationObserver( ( mutations ) => { | |
| // `ro.observe( relevantElement )`s as they are parsed and added to the DOM | |
| } ); | |
| mo.observe( document, { childList: true, subtree: true } ); | |
| </script> | |
| </head> | |
| <body> | |
| <p>Cool</p> | |
| <p>refreshing</p> | |
| <p>content</p> | |
| </body> | |
| </html> |
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