{"record":{"id":"d7fbadac0b4b4e0d","repo":"withastro/astro","slug":"could-not-optimize-entry-originalpath-with-th","errorCode":null,"errorMessage":"Could not optimize \"${entry.originalPath}\" with the Cloudflare IMAGES binding (${message}). Falling back to the local image service.","messagePattern":"Could not optimize \"(.+?)\" with the Cloudflare IMAGES binding \\((.+?)\\)\\. Falling back to the local image service\\.","errorType":"console","errorClass":null,"httpStatus":null,"severity":"warning","filePath":"packages/integrations/cloudflare/src/prerenderer.ts","lineNumber":351,"sourceCode":"\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\treturn entry.transforms.map((t) => ({ entry, t, sourcePath }));\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t\tawait forEachWithConcurrency(\n\t\t\t\t\t\t\t\tjobs,\n\t\t\t\t\t\t\t\tIMAGE_TRANSFORM_CONCURRENCY,\n\t\t\t\t\t\t\t\tasync ({ entry, t, sourcePath }) => {\n\t\t\t\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\t\t\t\tawait writeTransformedImage(\n\t\t\t\t\t\t\t\t\t\t\tserverUrl,\n\t\t\t\t\t\t\t\t\t\t\tclientDir,\n\t\t\t\t\t\t\t\t\t\t\tentry.originalPath,\n\t\t\t\t\t\t\t\t\t\t\tt.finalPath,\n\t\t\t\t\t\t\t\t\t\t\tt.transform,\n\t\t\t\t\t\t\t\t\t\t\tsourcePath,\n\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t} catch (err) {\n\t\t\t\t\t\t\t\t\t\tconst message = err instanceof Error ? err.message : String(err);\n\t\t\t\t\t\t\t\t\t\tlogger.warn(\n\t\t\t\t\t\t\t\t\t\t\t`Could not optimize \"${entry.originalPath}\" with the Cloudflare IMAGES binding (${message}). Falling back to the local image service.`,\n\t\t\t\t\t\t\t\t\t\t);\n\t\t\t\t\t\t\t\t\t\tdeferToNodeImageService(entry, t);\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\t);\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tfor (const entry of entries) {\n\t\t\t\t\t\t\t\tfor (const t of entry.transforms) {\n\t\t\t\t\t\t\t\t\tdeferToNodeImageService(entry, t);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Only load the Node-side image service if some transforms still need it.\n\t\t\t\t\t\tif (staticImages.size > 0) {\n\t\t\t\t\t\t\tglobalThis.astroAsset ??= {};\n\t\t\t\t\t\t\tif (userImageServiceEntrypoint) {","sourceCodeStart":333,"sourceCodeEnd":369,"githubUrl":"https://github.com/withastro/astro/blob/e294953aa8aadd98d5be92e60a03037b05dbdfd4/packages/integrations/cloudflare/src/prerenderer.ts#L333-L369","documentation":"When the Cloudflare adapter prerenders, optimized image variants are produced through the IMAGES binding inside a local workerd server. If a request to that server fails (binding unavailable or misconfigured, unsupported source format or transform, missing source), the adapter logs this warning and defers the transform to the Node-side image service (your configured service, or Sharp) so the build still emits images. The build succeeds — output is simply generated locally instead of by the Cloudflare IMAGES binding.","triggerScenarios":"`astro build` with the Cloudflare adapter in binding-image-service mode; the per-transform request to the prerender server throws (workerd error surfaces in parentheses); source images in formats the binding cannot process or remote images whose domains are not allowed.","commonSituations":"wrangler.toml/jsonc missing or mismatching the images binding configuration the adapter expects; upgrading adapter/wrangler versions; CI where workerd cannot run the binding; remote images not covered by image domains config.","solutions":["Read the parenthetical message — it is the raw workerd error telling you exactly what failed","Verify the IMAGES binding configuration in your wrangler config matches the adapter docs (binding name, compatibility settings)","Ensure local source images exist in the project and remote image domains are explicitly allowed","Keep sharp installed so the fallback produces correct output, or accept the fallback if the binding cannot run at build time"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":"// Ensure the fallback image service is actually installable in CI\n// package.json devDependencies must include sharp when you rely on the local fallback:\n// \"sharp\": \"^0.33\" — verify with:\nimport sharp from 'sharp';\nconsole.log('fallback image service ok:', typeof sharp === 'function');","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Keep wrangler images-binding config in sync with the adapter version's docs","Declare remote image domains explicitly so the binding can fetch them","Test `astro build` in the same environment you deploy from — workerd binding behavior differs across OSes","Treat the warning as build-time only: the emitted images come from Sharp, so verify their quality/size after builds"],"tags":["cloudflare","images","prerender","fallback"],"backgroundTag":"image-optimization-fallback","analyzedSha":"e294953aa8aadd98d5be92e60a03037b05dbdfd4","analyzedAt":"2026-08-18T18:48:03.901Z","contentChangedAt":"2026-08-18T18:48:03.901Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}