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fix(nextjs): Drop Sentry ingest request spans with ignoreSpans - #25438

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@Lms24 Lms24 commented Oct 16, 2026 •

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Superseded by #25441.

This PR fixes an issue where the SDK previously sent http.client spans for requests to sentry. Apparently such spans can happen in NextJS edge runtime, despite us trying to avoid this by using the native fetch implentation to send our telemetry. These spans accidentally slipped through because we removed SentrySampler which was needed for the previous beforeSampling approach due to the NextJS spans <> Sentry SDK interop.

This PR adds a new, span-streaming-native approach by using a pre-defined ignoreSpans filter criterion, matching the URL query against the url query attributes.

The Next.js server dropped spans for Sentry ingest requests by setting the
`beforeSampling` decision to false. Core has ignored that decision since
`SentrySampler` was removed, so these spans were sent again. Match them with
`ignoreSpans` attribute patterns instead, which core checks when a span starts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
@Lms24 Lms24 changed the title fix(nextjs): Drop Sentry ingest request spans with ignoreSpans fix(nextjs): Drop Sentry ingest request spans with ignoreSpans Oct 16, 2026
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size-limit report 📦

Path Size % Change Change
@sentry/browser 29.88 kB - -
@sentry/browser - with treeshaking flags 28.02 kB - -
@sentry/browser - with treeshaking flags tracing without tracing 27.92 kB - -
@sentry/browser (incl. Tracing) 52.07 kB - -
@sentry/browser (incl. Tracing + Span Streaming) 52.07 kB - -
@sentry/browser (incl. Tracing, Profiling) 55.02 kB - -
@sentry/browser (incl. Tracing, Replay) 91.82 kB - -
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags 80.68 kB - -
@sentry/browser (incl. Tracing, Replay with Canvas) 96.55 kB - -
@sentry/browser (incl. Tracing, Replay, Feedback) 109.49 kB - -
@sentry/browser (incl. Feedback) 47.4 kB - -
@sentry/browser (incl. sendFeedback) 34.94 kB - -
@sentry/browser (incl. FeedbackAsync) 40.05 kB - -
@sentry/browser (incl. Metrics) 30.9 kB - -
@sentry/browser (incl. Logs) 31.18 kB - -
@sentry/browser (incl. Metrics & Logs) 31.81 kB - -
@sentry/react 31.7 kB - -
@sentry/react (incl. Tracing) 54.39 kB - -
@sentry/vue 38.04 kB - -
@sentry/vue (incl. Tracing) 55.01 kB - -
@sentry/svelte 29.9 kB - -
@sentry/remix (Remix 3 client bundle) 57.08 kB - -
CDN Bundle 31.64 kB - -
CDN Bundle (incl. Tracing) 52.58 kB - -
CDN Bundle (incl. Logs, Metrics) 33.84 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) 54.52 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) 74.77 kB - -
CDN Bundle (incl. Tracing, Replay) 90.25 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) 92.18 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) 96.4 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) 98.34 kB - -
CDN Bundle - uncompressed 93.18 kB - -
CDN Bundle (incl. Tracing) - uncompressed 156.03 kB - -
CDN Bundle (incl. Logs, Metrics) - uncompressed 99.72 kB - -
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed 161.99 kB - -
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed 229.76 kB - -
CDN Bundle (incl. Tracing, Replay) - uncompressed 276.2 kB - -
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed 282.14 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed 289.9 kB - -
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed 295.84 kB - -
@sentry/nextjs (client) 56.8 kB - -
@sentry/sveltekit (client) 52.45 kB - -
@sentry/core/server 41.12 kB - -
@sentry/core/browser 13.81 kB - -
@sentry/node 152.48 kB +0.02% +16 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection) 83.81 kB - -
@sentry/node - without tracing 94.61 kB +0.01% +1 B 🔺
@sentry/node - without channel injection 130.7 kB +0.01% +11 B 🔺
@sentry/aws-serverless 102.77 kB +0.01% +4 B 🔺
@sentry/cloudflare (withSentry) - minified 210.6 kB - -
@sentry/cloudflare (withSentry) 522.53 kB - -
@sentry/nextjs/cloudflare (withSentry) - minified 228.13 kB -0.07% -138 B 🔽

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@Lms24 Lms24 closed this Oct 16, 2026
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