Skip to content
Navigation Menu
Sign in
Appearance settings
Platform
AI CODE CREATION
GitHub Copilot
Write better code with AI
GitHub Copilot app
Direct agents from issue to merge
MCP Registry
Integrate external tools
DEVELOPER WORKFLOWS
Actions
Automate any workflow
Codespaces
Instant dev environments
Issues
Plan and track work
Code Review
Manage code changes
Code Quality
Enforce quality at merge
APPLICATION SECURITY
GitHub Advanced Security
Find and fix vulnerabilities
Code security
Secure your code as you build
Secret protection
Stop leaks before they start
EXPLORE
Why GitHub
Documentation
Blog
Changelog
Marketplace
View all features
Solutions
BY COMPANY SIZE
Enterprises
Small and medium teams
Startups
Nonprofits
BY USE CASE
App Modernization
DevSecOps
DevOps
CI/CD
View all use cases
BY INDUSTRY
Healthcare
Financial services
Manufacturing
Government
View all industries
View all solutions
Resources
EXPLORE BY TOPIC
AI
Software Development
DevOps
Security
View all topics
EXPLORE BY TYPE
Customer stories
Events & webinars
Ebooks & reports
Business insights
GitHub Skills
SUPPORT & SERVICES
Documentation
Customer support
Community forum
Trust center
Partners
View all resources
Open Source
COMMUNITY
GitHub Sponsors
Fund open source developers
PROGRAMS
Security Lab
Maintainer Community
GitHub Stars
Archive Program
REPOSITORIES
Topics
Trending
Collections
Enterprise
ENTERPRISE SOLUTIONS
Enterprise platform
AI-powered developer platform
AVAILABLE ADD-ONS
GitHub Advanced Security
Enterprise-grade security features
Copilot for Business
Enterprise-grade AI features
Premium Support
Enterprise-grade 24/7 support
Pricing
Search
/
Sign in
Sign up
Appearance settings
You signed in with another tab or window.
Reload
to refresh your session.
You signed out in another tab or window.
Reload
to refresh your session.
You switched accounts on another tab or window.
Reload
to refresh your session.
Dismiss alert
{{ message }}
web-platform-tests
wpt
Repository navigation
Code
Issues
1.5k
(1.5k)
Pull requests
1.4k
(1.4k)
Actions
Projects
Security and quality
Insights
More
items
Search
Change the issues type filter
Search
New issue
Search issues
state
:
open
label
:
compression
state:open label:compression
Clear filter
Search
Issues
Open
1
(1)
Closed
Author
Labels
Projects
Milestones
Assignees
Types
Newest
Comfortable display density
Compact display density
accepting windows backslash paths
accelerometer
ai
ambient-light
appmanifest
assets
attribution-reporting
autoplay-policy-detection
Azure Pipelines
background-fetch
background-sync
badging
battery-status
beacon
bluetooth
clipboard-apis
close-watcher
compositing
compression
compute-pressure
connection-allowlist
console
contacts
container-timing
content-index
content-security-policy
cookie-store
cookies
cookiestore
cpu-performance
credential-management
CSS2
css-align
css-anchor-position
css-animations
css-backgrounds
css-borders
css-box
css-break
css-cascade
css-color
css-color-hdr
css-conditional
css-contain
css-content
css-counter-styles
css-display
css-env
css-flexbox
css-font-loading
css-fonts
css-forms
css-gaps
css-grid
css-highlight-api
css-images
css-inline
css-lists
css-masking
css-masonry
css-mixins
css-multicol
css-nesting
css-overflow
css-overscroll-behavior
css-page
css-position
css-pseudo
css-rhythm
css-ruby
css-scroll-anchoring
css-scroll-snap
css-scrollbars
css-shadow-parts
css-shapes
css-sizing
css-tables
css-text
css-text-decor
fetch
FileAPI
GitHub Actions
IndexedDB
Taskcluster
url
WebCryptoAPI
.well-known
wg-cg_wicg
wg-css
wg-das
wg-s_css
wg-s_webapps
wg-s_webappsec
wg-s_webediting
wg-s_webperf
wg-wai_aria
wg-webapps
wg-webcrypto
Unread
web-platform-tests/wpt
#53459
·
mertcanaltin
opened
Jun 28, 2025
·
Updated
Apr 2, 2026
10
You can’t perform that action at this time.