Update Fireperf logging to use sendBeacon only if the payload is under the 64KB limit

[raymondlam]

Fixes #9067

• Remove keepalive for fetches since it has the same payload limit as sendBeacon
• For normal Firelog requests, use sendBeacon if the payload is under 64KB, otherwise fallback to using fetch
• For the flush before the page unloads, attempt to flush using sendBeacons with a smaller set of events since some browser share a payload quota across all beacon requests
  • From this comment, Edge and Firefox enforce a 64KB limit per beacon. Chrome enforces a 64KB quota across all beacon-initiated requests within same nav context.

[changeset-bot]

🦋 Changeset detected

Latest commit: 1f7f6ab

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@firebase/performance	Patch
firebase	Patch
@firebase/performance-compat	Patch

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[github-actions]

Changeset File Check ✅

• No modified packages are missing from the changeset file.
• No changeset formatting errors detected.

[google-oss-bot]

Size Report ¹

Affected Products

• @firebase/performance

  Type	Base (86155b3)	Merge (26984bf)	Diff
  browser	30.6 kB	31.5 kB	+939 B (+3.1%)
  main	31.0 kB	32.0 kB	+939 B (+3.0%)
  module	30.6 kB	31.5 kB	+939 B (+3.1%)

• bundle

  Type	Base (86155b3)	Merge (26984bf)	Diff
  performance (trace)	62.4 kB	63.0 kB	+587 B (+0.9%)

• firebase

  Type	Base (86155b3)	Merge (26984bf)	Diff
  firebase-compat.js	807 kB	807 kB	+511 B (+0.1%)
  firebase-performance-compat.js	40.0 kB	40.5 kB	+501 B (+1.3%)
  firebase-performance-standalone-compat.js	105 kB	105 kB	+530 B (+0.5%)
  firebase-performance.js	45.5 kB	46.0 kB	+565 B (+1.2%)

Test Logs

• Base (86155b3): https://github.com/firebase/firebase-js-sdk/actions/runs/15859962192
• Merge (26984bf): https://github.com/firebase/firebase-js-sdk/actions/runs/15897111407

1. https://storage.googleapis.com/firebase-sdk-metric-reports/hBxAA2VpD3.html

[google-oss-bot]

Size Analysis Report ¹

Affected Products

• @firebase/performance

  • getPerformance

    Size

    Type	Base (86155b3)	Merge (26984bf)	Diff
    size	18.9 kB	19.5 kB	+584 B (+3.1%)
    size-with-ext-deps	62.3 kB	62.8 kB	+587 B (+0.9%)

    Dependency

    Type	Base (86155b3)	Merge (26984bf)	Diff
    functions	52 dependencies addToQueue changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getPerformance getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig transportHandler	53 dependencies addToQueue buildPayload changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getPerformance getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig transportHandler	+ buildPayload
    variables	54 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	56 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH MAX_SEND_BEACON_PAYLOAD_SIZE OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TEXT_ENCODER TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	+ MAX_SEND_BEACON_PAYLOAD_SIZE + TEXT_ENCODER

  • initializePerformance

    Size

    Type	Base (86155b3)	Merge (26984bf)	Diff
    size	19.0 kB	19.6 kB	+584 B (+3.1%)
    size-with-ext-deps	55.6 kB	56.2 kB	+587 B (+1.1%)

    Dependency

    Type	Base (86155b3)	Merge (26984bf)	Diff
    functions	52 dependencies addToQueue changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf initializePerformance isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig transportHandler	53 dependencies addToQueue buildPayload changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf initializePerformance isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig transportHandler	+ buildPayload
    variables	54 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	56 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH MAX_SEND_BEACON_PAYLOAD_SIZE OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TEXT_ENCODER TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	+ MAX_SEND_BEACON_PAYLOAD_SIZE + TEXT_ENCODER

  • trace

    Size

    Type	Base (86155b3)	Merge (26984bf)	Diff
    size	18.8 kB	19.4 kB	+584 B (+3.1%)
    size-with-ext-deps	55.0 kB	55.6 kB	+587 B (+1.1%)

    Dependency

    Type	Base (86155b3)	Merge (26984bf)	Diff
    functions	52 dependencies addToQueue changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig trace transportHandler	53 dependencies addToQueue buildPayload changeInitializationStatus configValid convertMetricValueToInteger createNetworkRequestEntry createUserTimingTrace dispatchQueueEvents flushLogs flushQueuedEvents getApiKey getAppId getApplicationInfo getAuthTokenPromise getConfig getDocumentReadyComplete getEffectiveConnectionType getIid getIidPromise getInitializationPromise getProjectId getRemoteConfig getServiceWorkerStatus getStoredConfig getVisibilityState initializePerf isPerfInitialized isValidCustomAttributeName isValidCustomAttributeValue isValidMetricName logNetworkRequest logTrace mergeStrings postToFlEndpoint processConfig processQueue registerPerformance sendLog sendOobTrace sendTraceLog serializeNetworkRequest serializeTrace serializer setupApi setupNetworkRequests setupOobResources setupOobTraces setupTransportService setupUserTimingTraces shouldLogAfterSampling storeConfig trace transportHandler	+ buildPayload
    variables	54 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	56 dependencies ATTRIBUTE_FORMAT_REGEX CONFIG_EXPIRY_LOCAL_STORAGE_KEY CONFIG_LOCAL_STORAGE_KEY COULD_NOT_GET_CONFIG_MSG CUMULATIVE_LAYOUT_SHIFT_ATTRIBUTE_NAME CUMULATIVE_LAYOUT_SHIFT_METRIC_NAME DEFAULT_CONFIGS DEFAULT_ENTRY_NAME DEFAULT_REMAINING_TRIES DEFAULT_SEND_INTERVAL_MS ERROR_DESCRIPTION_MAP ERROR_FACTORY FIRST_CONTENTFUL_PAINT_COUNTER_NAME FIRST_INPUT_DELAY_COUNTER_NAME FIRST_PAINT_COUNTER_NAME FIS_AUTH_PREFIX INITIAL_SEND_TIME_DELAY_MS INTERACTION_TO_NEXT_PAINT_ATTRIBUTE_NAME INTERACTION_TO_NEXT_PAINT_METRIC_NAME LARGEST_CONTENTFUL_PAINT_ATTRIBUTE_NAME LARGEST_CONTENTFUL_PAINT_METRIC_NAME MAX_ATTRIBUTE_NAME_LENGTH MAX_ATTRIBUTE_VALUE_LENGTH MAX_EVENT_COUNT_PER_REQUEST MAX_METRIC_NAME_LENGTH MAX_SEND_BEACON_PAYLOAD_SIZE OOB_TRACE_PAGE_LOAD_PREFIX REMOTE_CONFIG_SDK_VERSION RESERVED_ATTRIBUTE_PREFIXES RESERVED_AUTO_PREFIX SDK_VERSION SERVICE SERVICE_NAME TEXT_ENCODER TRACE_MEASURE_PREFIX TRACE_START_MARK_PREFIX TRACE_STOP_MARK_PREFIX VisibilityState apiInstance consoleLogger factory firstInputDelay iid initializationPromise initializationStatus isTransportSetup logger name oobMetrics queue remainingTries sentPageLoadTrace settingsServiceInstance version webVitalMetrics windowInstance	+ MAX_SEND_BEACON_PAYLOAD_SIZE + TEXT_ENCODER

Test Logs

• Base (86155b3): https://github.com/firebase/firebase-js-sdk/actions/runs/15859962192
• Merge (26984bf): https://github.com/firebase/firebase-js-sdk/actions/runs/15897111407

1. https://storage.googleapis.com/firebase-sdk-metric-reports/HmSmHlsUt9.html