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Update Speculation Rules data with specs and Webview support #27935

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Merged
caugner merged 14 commits into from
Sep 25, 2025
Merged

Update Speculation Rules data with specs and Webview support #27935

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3cce2cb
Update Speculation Rules data with specs and Webview support
tunetheweb Sep 19, 2025
80d4e85
Add Prerender spec
tunetheweb Sep 19, 2025
cd66ffb
Fix prerender spec URL
tunetheweb Sep 19, 2025
7b5a42a
Merge branch 'main' into speculation-rules-updates
tunetheweb Sep 19, 2025
ff7083a
More updates
tunetheweb Sep 19, 2025
b53b584
Merge branch 'speculation-rules-updates' of github.com:tunetheweb/bro…
tunetheweb Sep 19, 2025
3b85ccd
Review feedback
tunetheweb Sep 19, 2025
10e840f
Add Fenced Frame spec url
tunetheweb Sep 19, 2025
a940d9a
Add script spec urls
tunetheweb Sep 19, 2025
411e415
Better links
tunetheweb Sep 19, 2025
de6e9aa
Update http/headers/Supports-Loading-Mode.json
caugner Sep 19, 2025
87acea4
Update api/Request.json
caugner Sep 19, 2025
bc9b695
Spec URLs with fragments
tunetheweb Sep 19, 2025
2e50c7e
Merge branch 'main' into speculation-rules-updates
tunetheweb Sep 19, 2025
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1 change: 1 addition & 0 deletions api/PerformanceNavigationTiming.json
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@
"activationStart": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/API/PerformanceNavigationTiming/activationStart",
"spec_url": "https://wicg.github.io/nav-speculation/prerendering.html#performance-navigation-timing-extension",
"tags": [
"web-features:speculation-rules"
],
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3 changes: 2 additions & 1 deletion api/Request.json
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Original file line number Diff line number Diff line change
Expand Up @@ -982,7 +982,8 @@
"__compat": {
"description": "`speculationrules` value",
"tags": [
"web-features:fetch"
"web-features:fetch",
"web-features:speculation-rules"
],
"support": {
"chrome": {
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14 changes: 14 additions & 0 deletions html/elements/script.json
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Original file line number Diff line number Diff line change
Expand Up @@ -767,6 +767,7 @@
"__compat": {
"description": "`eagerness` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#eagerness",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#speculation-rule-eagerness",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -802,6 +803,7 @@
"__compat": {
"description": "`expects_no_vary_search` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#expects_no_vary_search",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
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@caugner caugner Sep 19, 2025

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For all these keys pointing to https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule, it would be preferable to add a text fragment, as this would allow us (in the future) to detect when a feature like this disappears from the spec.

But this is not a strict requirement for now, so we can merge as is.

/cc @Elchi3

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@tunetheweb tunetheweb Sep 19, 2025

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I guess as long as it’s a fragment after the id I’m ok with that. Worse case it still links to the anchor o was linking to anyway. Let me add those back then.

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@Elchi3 Elchi3 Sep 19, 2025

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it would be preferable to add a text fragment

fwiw, I prefer real ids/anchors/definitions present in the specs. Text fragments are very unstable and I currently have no implementation for validating them.

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@caugner caugner Sep 19, 2025

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Note that I was actually suggesting text fragments combined with ID fragments:

https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule:~:text=%2C%20%22tag%22%2C

For validation, you could just ignore the :~: part for now.

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@tunetheweb tunetheweb Sep 19, 2025

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Updated now so think this is good to merge.

"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -845,6 +847,7 @@
"__compat": {
"description": "`prefetch` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#prefetch",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#speculation-rule-set-authoring-requirements",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -926,6 +929,7 @@
"__compat": {
"description": "`referrer_policy` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#referrer_policy",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -961,6 +965,7 @@
"__compat": {
"description": "`relative_to` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#relative_to_2",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -996,6 +1001,7 @@
"__compat": {
"description": "`requires` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#requires",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#speculation-rule-requirement",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1032,6 +1038,7 @@
"__compat": {
"description": "`anonymous-client-ip-when-cross-origin` value",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#anonymous-client-ip-when-cross-origin",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#speculation-rule-requirement",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1078,6 +1085,7 @@
"__compat": {
"description": "`source` key is optional",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#source",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1113,6 +1121,7 @@
"__compat": {
"description": "`tag` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#tag",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#speculation-rule-tag",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1148,6 +1157,7 @@
"__compat": {
"description": "`target_hint` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#target_hint",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1184,6 +1194,8 @@
"urls": {
"__compat": {
"description": "`urls` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#urls",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-speculation-rule",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -1220,6 +1232,8 @@
"where": {
"__compat": {
"description": "`where` key",
"mdn_url": "https://developer.mozilla.org/docs/Web/HTML/Reference/Elements/script/type/speculationrules#where",
"spec_url": "https://html.spec.whatwg.org/multipage/speculative-loading.html#valid-document-rule-predicate",
"tags": [
"web-features:speculation-rules"
],
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2 changes: 2 additions & 0 deletions http/headers/Supports-Loading-Mode.json
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
"credentialed-prerender": {
"__compat": {
"description": "`credentialed-prerender` directive",
"spec_url": "https://wicg.github.io/nav-speculation/prerendering.html#supports-loading-mode-credentialed-prerender",
"tags": [
"web-features:speculation-rules"
],
Expand Down Expand Up @@ -72,6 +73,7 @@
"fenced-frame": {
"__compat": {
"description": "`fenced-frame` directive",
"spec_url": "https://wicg.github.io/fenced-frame/#supports-loading-mode",
"tags": [
"web-features:speculation-rules"
],
Expand Down