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Hoist AMP script preload for minor performance improvement 🛥️ #7184

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5 changes: 5 additions & 0 deletions .changeset/rude-berries-rush.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'@sveltejs/amp': patch
---

Amend boilerplate to match current recommendations
4 changes: 2 additions & 2 deletions packages/amp/index.js
Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
// https://amp.dev/documentation/guides-and-tutorials/learn/spec/amp-boilerplate/
const boilerplate = `
<style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
<link rel="preload" as="script" href="https://cdn.ampproject.org/v0.js">
<link rel="preload" as="script" href="https://cdn.ampproject.org/v0.js" />
<script async src="https://cdn.ampproject.org/v0.js"></script>
<style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
`;

/** @param {string} html */
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