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pieh opened this issue May 12, 2025 · 0 comments
Open

experimental clientTraceMetadata feature does not produce meta tags #2924

pieh opened this issue May 12, 2025 · 0 comments
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Next.js e2e test failure Errors identified through the Next.js repo e2e tests

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@pieh
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pieh commented May 12, 2025 •
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Example failure:

 ● clientTraceMetadata › app router › should inject propagation data for a dynamically server-side-rendered page

    expect(received).toContain(expected) // indexOf

    Expected substring: "<meta name=\"my-test-key-1\" content=\"my-test-value-1\">"
    Received string:    "<head><meta charset=\"utf-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"><link rel=\"preload\" as=\"script\" fetchpriority=\"low\" href=\"/_next/static/chunks/webpack-193d6f1dd590c8a5.js\"><script src=\"/_next/static/chunks/4bd1b696-0d720e2a8e3347a2.js\" async></script><script src=\"/_next/static/chunks/684-d355f4db0abc1a0f.js\" async></script><script src=\"/_next/static/chunks/main-app-0170bb3ac93153a0.js\" async></script><script>document.querySelectorAll('body link[rel=\"icon\"], body link[rel=\"apple-touch-icon\"]').forEach(el => document.head.appendChild(el))</script><script src=\"/_next/static/chunks/polyfills-42372ed130431b0a.js\" nomodule></script></head>"

      11 |       const $ = await next.render$('/app-router/dynamic-page')
      12 |       const headHtml = $.html('head')
    > 13 |       expect(headHtml).toContain(
         |                        ^
      14 |         '<meta name="my-test-key-1" content="my-test-value-1">'
      15 |       )
      16 |       expect(headHtml).toContain(

      at Object.toContain (e2e/opentelemetry/client-trace-metadata/client-trace-metadata.test.ts:13:24)

It appears that something in our handling prevents Next.js from producing expected <meta> tags when clientTraceMetadata experimental feature is enabled.

Data

The following is parsed automatically by the Next.js repo e2e test report generator.

test: test/e2e/opentelemetry/client-trace-metadata/client-trace-metadata.test.ts
reason: clientTraceMetadata experimental feature not supported
@pieh pieh added the Next.js e2e test failure Errors identified through the Next.js repo e2e tests label May 12, 2025
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