Issues

• Should a new PerformanceObserver with buffered:true require buffered entries synchronously?

  w3c/performance-timeline#231 · Filter by author mmocny opened on Sep 24, 2026
  6

  

• Add PerformanceObserver option for "per-paint" reporting.

  w3c/performance-timeline#228 · Filter by author mmocny opened on Mar 26, 2026
  1

  

• PerformanceEntry.id is shadowed by PerformanceElementTiming.id.

  w3c/performance-timeline#218 · Filter by author powdercloud opened on Mar 18, 2025
  3

  

• Consider changing the spec text to allow buffered with entryTypes

  w3c/performance-timeline#215 · Filter by author hiikezoe opened on Jan 8, 2025
  5

• droppedEntriesCount can be inconsistent with reported entries

  w3c/performance-timeline#214 · Filter by author rubennorte opened on Sep 23, 2024
  1

• PerformanceObserver.supportedEntryTypescan't be annotated with [SameObject]

  w3c/performance-timeline#212 · Filter by author petervanderbeken opened on Apr 18, 2024
  7

  

• Cross-origin timeline support

  w3c/performance-timeline#207 · Filter by author clelland opened on Feb 7, 2023
  8

  

• Proposal: clock-drift correction, potentially with opt-in

  w3c/performance-timeline#206 · Filter by author noamr opened on Feb 5, 2023
  25

• Consider renaming PerformanceObserverCallbackOptions

  w3c/performance-timeline#199 · Filter by author kenchris opened on Mar 16, 2022
  1

  

• API shape for monitoring new navigation-like entries such as App History, BFCache, etc

  w3c/performance-timeline#182 · Filter by author nicjansma opened on Jun 24, 2021
  7

• Hard to feature-detect observe() parameters

  external-dependency
  w3c/performance-timeline#176 · Filter by author npm1 opened on Sep 22, 2020

• Fire Paint Timing events for soft navigations

  SPA-reporting
  w3c/performance-timeline#168 · Filter by author dwsmart opened on Jun 17, 2020
  10

  

• PerformanceEntries are affected by backgrounded status

  w3c/performance-timeline#105 · Filter by author npm1 opened on Jul 25, 2018 · Level 3
  22

• When a UA is under memory pressure, what the proper way to shrink buffers in timeline?

  w3c/performance-timeline#101 · Filter by author toddreifsteck opened on Feb 22, 2018 · Level 3
  1

• "bubbles" flag for monitoring of all IFRAMEs

  w3c/performance-timeline#86 · Filter by author nicjansma opened on Aug 11, 2017 · Level 3
  9