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Remove redundant RSC fetch monkey patches #603

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Merged
alexrisch merged 1 commit into from
Jun 28, 2026
+0 −140
Merged

Remove redundant RSC fetch monkey patches #603

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84 changes: 0 additions & 84 deletions src/lib/rsc-route-normalization.test.ts
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10 changes: 0 additions & 10 deletions src/lib/rsc-route-normalization.ts
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33 changes: 0 additions & 33 deletions src/pages/_layout.tsx
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Original file line number Diff line number Diff line change
@@ -1,36 +1,5 @@
import type { PropsWithChildren } from 'react'

export const normalizeProxiedRscFetch = `
(() => {
if (window.__tempoNormalizeProxiedRscFetch) return;
window.__tempoNormalizeProxiedRscFetch = true;
const originalFetch = window.fetch.bind(window);
window.fetch = (input, init) => {
const url = typeof input === 'string'
? input
: input instanceof URL
? input.toString()
: input.url;
const requestUrl = new URL(url, window.location.href);
let rewritten = url;
if (requestUrl.pathname.startsWith('/RSC/R/')) {
const pathname = requestUrl.pathname
.replace(/\\/RSC\\/R\\/developers\\.txt$/, '/RSC/R/_root.txt')
.replace(/\\/RSC\\/R\\/developers\\//, '/RSC/R/');
rewritten = new URL(
pathname + requestUrl.search + requestUrl.hash,
window.location.origin,
).toString();
}

if (rewritten === url) return originalFetch(input, init);
if (typeof input === 'string' || input instanceof URL) return originalFetch(rewritten, init);

return originalFetch(new Request(rewritten, input), init);
};
})();
`

export default function Layout(
props: PropsWithChildren<{
path: string
Expand All @@ -46,8 +15,6 @@ export default function Layout(
type="font/woff2"
crossOrigin="anonymous"
/>
{/* biome-ignore lint/security/noDangerouslySetInnerHtml: static bootstrap must run before the RSC client bundle. */}
<script dangerouslySetInnerHTML={{ __html: normalizeProxiedRscFetch }} />
{props.children}
</>
)
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13 changes: 0 additions & 13 deletions src/pages/docs/_layout.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@ import DocsHeader from '../../components/DocsHeader'
import DocsSectionNav from '../../components/DocsSectionNav'
import DocsSidebarDrawer from '../../components/DocsSidebarDrawer'
import { usePageSettled } from '../../lib/pageSettled'
import { normalizeRscFetchUrl } from '../../lib/rsc-route-normalization'

const Analytics = lazy(() =>
import('@vercel/analytics/react').then((module) => ({ default: module.Analytics })),
Expand All @@ -18,18 +17,6 @@ const GoogleAnalytics = lazy(() => import('../../components/GoogleAnalytics'))
const PostHogSetup = lazy(() => import('../../components/PostHogSetup'))

if (typeof window !== 'undefined') {
const originalFetch = window.fetch.bind(window)
window.fetch = (input, init) => {
const url =
typeof input === 'string' ? input : input instanceof URL ? input.toString() : input.url
const rewritten = normalizeRscFetchUrl(url, window.location.href, window.location.origin)

if (rewritten === url) return originalFetch(input, init)
if (typeof input === 'string' || input instanceof URL) return originalFetch(rewritten, init)

return originalFetch(new Request(rewritten, input), init)
}

window.addEventListener('vite:preloadError', (event) => {
const key = `vite:preloadError:${(event as unknown as CustomEvent).detail?.message}`
if (!sessionStorage.getItem(key)) {
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