René's URL Explorer Experiment


Title: fix: send Origin header for streamable HTTP by he-yufeng · Pull Request #2731 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: fix: send Origin header for streamable HTTP by he-yufeng · Pull Request #2731 · modelcontextprotocol/python-sdk

X Title: fix: send Origin header for streamable HTTP by he-yufeng · Pull Request #2731 · modelcontextprotocol/python-sdk

Description: Fixes #2727. Summary derive an Origin header from the streamable HTTP endpoint for client requests keep a caller-provided Origin on custom httpx.AsyncClient headers cover the default and custom-Origin paths in streamable HTTP client tests To verify uv run pytest tests/shared/test_streamable_http.py -q uv run ruff check src/mcp/client/streamable_http.py tests/shared/test_streamable_http.py uv run ruff format --check src/mcp/client/streamable_http.py tests/shared/test_streamable_http.py uv run pyright src/mcp/client/streamable_http.py tests/shared/test_streamable_http.py python -m py_compile src\mcp\client\streamable_http.py tests\shared\test_streamable_http.py

Open Graph Description: Fixes #2727. Summary derive an Origin header from the streamable HTTP endpoint for client requests keep a caller-provided Origin on custom httpx.AsyncClient headers cover the default and custom-Or...

X Description: Fixes #2727. Summary derive an Origin header from the streamable HTTP endpoint for client requests keep a caller-provided Origin on custom httpx.AsyncClient headers cover the default and custom-Or...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/2731

X: @github

direct link

Domain: github.com

route-pattern/:user_id/:repository/pull/:id/files(.:format)
route-controllerpull_requests
route-actionfiles
fetch-noncev2:d4c46437-5fd1-f060-fb2b-ef9b47b622fc
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idD694:2DBF60:7BDF48:A72893:6A5A81CB
html-safe-nonce1ffd20dd6a4590955ce5e3d7d545c7b077834ff72f9d9c8026918999e10cce65
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJENjk0OjJEQkY2MDo3QkRGNDg6QTcyODkzOjZBNUE4MUNCIiwidmlzaXRvcl9pZCI6Ijc5ODIxMTMxODQyODY0MDkxNjQiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac487ad61f33d5ed083944c1585bb530748c8e3d5c5a2603e5436fd8b8720f3ed2
hovercard-subject-tagpull_request:3774149863
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///pull_requests/show/files
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/modelcontextprotocol/python-sdk/pull/2731/files
twitter:imagehttps://avatars.githubusercontent.com/u/40085740?s=400&v=4
twitter:cardsummary_large_image
og:imagehttps://avatars.githubusercontent.com/u/40085740?s=400&v=4
og:image:altFixes #2727. Summary derive an Origin header from the streamable HTTP endpoint for client requests keep a caller-provided Origin on custom httpx.AsyncClient headers cover the default and custom-Or...
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
None922bdba685ea48400234d557977f0e32d9adbae6f5125725b4f48cacc6801106
turbo-cache-controlno-preview
diff-viewunified
go-importgithub.com/modelcontextprotocol/python-sdk git https://github.com/modelcontextprotocol/python-sdk.git
octolytics-dimension-user_id182288589
octolytics-dimension-user_loginmodelcontextprotocol
octolytics-dimension-repository_id862584018
octolytics-dimension-repository_nwomodelcontextprotocol/python-sdk
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id862584018
octolytics-dimension-repository_network_root_nwomodelcontextprotocol/python-sdk
turbo-body-classeslogged-out env-production page-responsive full-width
disable-turbotrue
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release7c8a44665d760d73ead7e85d8f88b299152aa681
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F2731%2Ffiles
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F2731%2Ffiles
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fpull_requests%2Fshow%2Ffiles&source=header-repo&source_repo=modelcontextprotocol%2Fpython-sdk
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Reloadhttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
modelcontextprotocol https://github.com/modelcontextprotocol
python-sdkhttps://github.com/modelcontextprotocol/python-sdk
Notifications https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Fork 3.7k https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Star 23.6k https://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Code https://github.com/modelcontextprotocol/python-sdk
Issues 256 https://github.com/modelcontextprotocol/python-sdk/issues
Pull requests 303 https://github.com/modelcontextprotocol/python-sdk/pulls
Actions https://github.com/modelcontextprotocol/python-sdk/actions
Projects https://github.com/modelcontextprotocol/python-sdk/projects
Models https://github.com/modelcontextprotocol/python-sdk/models
Security and quality 6 https://github.com/modelcontextprotocol/python-sdk/security
Insights https://github.com/modelcontextprotocol/python-sdk/pulse
Code https://github.com/modelcontextprotocol/python-sdk
Issues https://github.com/modelcontextprotocol/python-sdk/issues
Pull requests https://github.com/modelcontextprotocol/python-sdk/pulls
Actions https://github.com/modelcontextprotocol/python-sdk/actions
Projects https://github.com/modelcontextprotocol/python-sdk/projects
Models https://github.com/modelcontextprotocol/python-sdk/models
Security and quality https://github.com/modelcontextprotocol/python-sdk/security
Insights https://github.com/modelcontextprotocol/python-sdk/pulse
Sign up for GitHub https://github.com/signup?return_to=%2Fmodelcontextprotocol%2Fpython-sdk%2Fissues%2Fnew%2Fchoose
terms of servicehttps://docs.github.com/terms
privacy statementhttps://docs.github.com/privacy
Sign inhttps://github.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk%2Fissues%2Fnew%2Fchoose
he-yufenghttps://github.com/he-yufeng
modelcontextprotocol:mainhttps://github.com/modelcontextprotocol/python-sdk/tree/main
he-yufeng:fix/streamable-http-origin-headerhttps://github.com/he-yufeng/python-sdk/tree/fix/streamable-http-origin-header
Conversation 1 https://github.com/modelcontextprotocol/python-sdk/pull/2731
Commits 1 https://github.com/modelcontextprotocol/python-sdk/pull/2731/commits
Checks 27 https://github.com/modelcontextprotocol/python-sdk/pull/2731/checks
Files changed https://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
fix: send Origin header for streamable HTTP https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#top
Show all changes 1 commit https://github.com/modelcontextprotocol/python-sdk/pull/2731/files
1107118 fix: send Origin header for streamable HTTP he-yufeng May 30, 2026 https://github.com/modelcontextprotocol/python-sdk/pull/2731/commits/11071181bf7ba8ea8102d1e54957086a80e244a6
Clear filters https://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
streamable_http.py https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
test_streamable_http.py https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-57d1f3c64af36960aa61b1d77387fb6201b90fbc2f3d606bf2761315ce618cc5
src/mcp/client/streamable_http.pyhttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
View file https://github.com/he-yufeng/python-sdk/blob/11071181bf7ba8ea8102d1e54957086a80e244a6/src/mcp/client/streamable_http.py
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/modelcontextprotocol/python-sdk/pull/2731/{{ revealButtonHref }}
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-e8c18a3067a9b157c5c39a947f53d395afeb00e7026dad2d5a279011da943b5e
tests/shared/test_streamable_http.pyhttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-57d1f3c64af36960aa61b1d77387fb6201b90fbc2f3d606bf2761315ce618cc5
View file https://github.com/he-yufeng/python-sdk/blob/11071181bf7ba8ea8102d1e54957086a80e244a6/tests/shared/test_streamable_http.py
Open in desktop https://desktop.github.com
https://github.co/hiddenchars
https://github.com/modelcontextprotocol/python-sdk/pull/2731/{{ revealButtonHref }}
https://github.com/modelcontextprotocol/python-sdk/pull/2731/files#diff-57d1f3c64af36960aa61b1d77387fb6201b90fbc2f3d606bf2761315ce618cc5
Please reload this pagehttps://github.com/modelcontextprotocol/python-sdk/pull/2731/files
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width

URLs of crawlers that visited me.