Initial commit

node_modules/next/dist/esm/client/components/router-reducer/set-cache-busting-search-param.js

@@ -0,0 +1,43 @@
+'use client';
+import { hexHash } from '../../../shared/lib/hash';
+import { NEXT_ROUTER_PREFETCH_HEADER, NEXT_ROUTER_SEGMENT_PREFETCH_HEADER, NEXT_ROUTER_STATE_TREE_HEADER, NEXT_URL, NEXT_RSC_UNION_QUERY } from '../app-router-headers';
+/**
+ * Mutates the provided URL by adding a cache-busting search parameter for CDNs that don't
+ * support custom headers. This helps avoid caching conflicts by making each request unique.
+ *
+ * Rather than relying on the Vary header which some CDNs ignore, we append a search param
+ * to create a unique URL that forces a fresh request.
+ *
+ * Example:
+ * URL before: https://example.com/path?query=1
+ * URL after: https://example.com/path?query=1&_rsc=abc123
+ *
+ * Note: This function mutates the input URL directly and does not return anything.
+ *
+ * TODO: Since we need to use a search param anyway, we could simplify by removing the custom
+ * headers approach entirely and just use search params.
+ */ export const setCacheBustingSearchParam = (url, headers)=>{
+    const uniqueCacheKey = hexHash([
+        headers[NEXT_ROUTER_PREFETCH_HEADER] || '0',
+        headers[NEXT_ROUTER_SEGMENT_PREFETCH_HEADER] || '0',
+        headers[NEXT_ROUTER_STATE_TREE_HEADER],
+        headers[NEXT_URL]
+    ].join(','));
+    /**
+   * Note that we intentionally do not use `url.searchParams.set` here:
+   *
+   * const url = new URL('https://example.com/search?q=custom%20spacing');
+   * url.searchParams.set('_rsc', 'abc123');
+   * console.log(url.toString()); // Outputs: https://example.com/search?q=custom+spacing&_rsc=abc123
+   *                                                                             ^ <--- this is causing confusion
+   * This is in fact intended based on https://url.spec.whatwg.org/#interface-urlsearchparams, but
+   * we want to preserve the %20 as %20 if that's what the user passed in, hence the custom
+   * logic below.
+   */ const existingSearch = url.search;
+    const rawQuery = existingSearch.startsWith('?') ? existingSearch.slice(1) : existingSearch;
+    const pairs = rawQuery.split('&').filter(Boolean);
+    pairs.push(NEXT_RSC_UNION_QUERY + "=" + uniqueCacheKey);
+    url.search = pairs.length ? "?" + pairs.join('&') : '';
+};
+
+//# sourceMappingURL=set-cache-busting-search-param.js.map