Filter dynamic import errors from Sentry#8349
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iHiD merged 1 commit intoFeb 8, 2026
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These "Failed to fetch dynamically imported module" TypeErrors are caused by transient network issues, ad blockers, or deploys invalidating cached chunk names. They are not actionable and just create noise. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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* Replace Bugsnag with Sentry for error monitoring Migrate error monitoring from Bugsnag to Sentry across both the Ruby backend and JavaScript frontend. Uses Exercism.config.sentry_dsn for backend config and env.json for frontend config, both production-only. - Swap bugsnag gem for sentry-ruby + sentry-rails - Swap @bugsnag/js + @bugsnag/plugin-react for @sentry/react - Replace all Bugsnag.notify() calls with Sentry.capture_exception() - Preserve Active Storage RecordNotFound filter via before_send - Replace skip_bugsnag job pattern with retry_on + excluded_exceptions - Update CSP connect policy for Sentry ingest domain - Update GitHub labels from bot/bugsnag to bot/sentry Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Update Gemfile.lock and fix sentry test stubs Run bundle install to remove bugsnag from lockfile and add sentry gems. Fix Mocha stubbing errors in sentry_test.rb for cases where url is never accessed. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Add x86_64-linux platform to Gemfile.lock CI runs on Linux and the lockfile only had the darwin platform after the gem swap. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Use separate Sentry DSN config keys for Rails and JS - Backend: Exercism.config.sentry_rails_dsn - Frontend: Exercism.config.sentry_js_dsn (piped through env.json) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Sample JS errors: 100% logged-in, 1% logged-out Use beforeSend to always capture errors from logged-in users (with user ID attached) and sample only 1% of errors from logged-out users to avoid excessive noise. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Filter dynamic import errors from Sentry (#8349) These "Failed to fetch dynamically imported module" TypeErrors are caused by transient network issues, ad blockers, or deploys invalidating cached chunk names. They are not actionable and just create noise. Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
iHiD
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Feb 8, 2026
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Summary
Failed to fetch dynamically imported moduleerrors in the SentrybeforeSendhookTest plan
yarn testpasses🤖 Generated with Claude Code