Attendees
- Cliff Crocker
- Andrew Creskey
- Barry Pollard
- Eric Goldstein
- Issac Gerges
- Ivalio Hristov
- Karlijn Lowik
- Mateusz Krrzeszowiak
- Michal Mocny
- Nazim Can Altinova
- Nic Jansma
- Robin Marx
- Sergey Chernyshev
- Lucas Pardue
- Simeon Totev
- Matt Zeunert
- Sia Karamalegos
- Philip Tellis
- Ben Zörb
Agenda
Admin
- Next meeting: August 2025
AI Notes
Notes
Overview
- Fetch Later API launched this year, impacting RUM vendors with strict quota limitations; RunVision faced issues where iframes consumed all available quota.
- Major version release of Web Vitals V5 introduced breaking changes, raising concerns among developers and vendors.
- Interaction ID implementation completed for Firefox, with improvements to Largest Contentful Paint planned for Firefox 140.
- Core Web Vitals Interop score significantly improved, indicating better browser performance alignment.
- Soft Navigations V2 features major implementation overhaul, bringing in new performance entry types for enhanced tracking.
- Technical Architecture Changes made for better attribution in soft navigation detection, highlighting implementation alignment challenges.
- Emphasis on standardization requirements for distinguishing between navigation and UI changes in RUM data collection.
- TPAC Conference set for November in Kobe, Japan, with discussions about a breakout session for interested RUM community members.
- Presentation on unresponsive crash reports postponed to August meeting, with a focus on implementation best practices for RUM.
- July meeting canceled due to vacation schedules; next gathering planned for August to address ongoing challenges.
Notes
Meeting Opening & Logistics (01:09 - 05:55)
- Meeting held on Friday, June 20th with 16 participants attending
- Cliff Crocker celebrated his 50th birthday last week, spent it in Moab Desert overlanding
- July meeting canceled due to vacation schedules, next meeting planned for August
- Slides and presentations will be shared after meeting for reference
Chrome Team Updates - Barry Pollard (07:23 - 25:29)
- Fetch Later API launched earlier this year with strict quota limitations affecting RUM vendors
- RunVision encountered quota issues where iframes consumed all available quota
- Web Vitals V5 released as major version with breaking changes
- Speculation Rules major platform rollouts with WordPress and Shopify
- Compression Dictionary Transport gaining adoption
Firefox Updates - Nazım Can Altınova (31:05 - 32:57)
- Interaction ID implementation completed and enabled in Nightly
- Largest Contentful Paint improvements planned for Firefox 140
- Core Web Vitals Interop score improved significantly
Soft Navigations V2 - Michal Mocny (38:52 - 53:01)
- Major implementation overhaul with new performance entries
- Technical Architecture Changes for better attribution
- New Performance Entry Types introduced for enhanced tracking
- Debugging and Analysis Tools updated for soft navigation support
️ Implementation Challenges and Alignment (55:07 - 01:00:25)
- RUM vendor alignment discussion on soft navigation detection
- Standardization Requirements emphasized for navigation vs UI change distinction
Future Planning (01:02:46 - 01:04:30)
- TPAC Conference discussion for November in Kobe, Japan
- Isaac's Slack presentation on unresponsive crash reports postponed to August meeting
- August meeting to focus on implementation best practices
Action items
Barry Pollard
- Update Fetch Later quota bug status and report progress to community (08:40)
- Continue developing Web Vitals V5 documentation and address any issues found (09:45)
Nazım Can Altınova
- Ship Interaction ID in Firefox 144 or earlier with paint timing mixing implementation (31:05)
- Implement presentation time support for LCP to align with Chrome's timing approach (32:57)
Michal Mocny
- Restart soft navigation origin trial in Chrome 139 with API changes (41:47)
- Continue documentation updates for soft navigation implementation (54:16)
Nic Jansma
- Send July meeting cancellation and schedule August meeting date (05:55)
- Coordinate potential TPAC breakout session for interested RUM community members (01:02:46)
- Share slides and presentations in centralized location for group access (36:13)
Isaac Gerges
- Present Slack's unresponsive crash reports and self-profiling challenges at August meeting (36:50)