René's URL Explorer Experiment


Title: fix: send priming event in GET handler to prevent hang by wukai9203 · Pull Request #1883 · modelcontextprotocol/python-sdk · GitHub

Open Graph Title: fix: send priming event in GET handler to prevent hang by wukai9203 · Pull Request #1883 · modelcontextprotocol/python-sdk

X Title: fix: send priming event in GET handler to prevent hang by wukai9203 · Pull Request #1883 · modelcontextprotocol/python-sdk

Description: Problem GET requests to /mcp endpoint hang indefinitely when using streamable_http_app(). Related issue in FastMCP: jlowin/fastmcp#532 Root Cause The _handle_get_request method's standalone_sse_wri...

Open Graph Description: Problem GET requests to /mcp endpoint hang indefinitely when using streamable_http_app(). Related issue in FastMCP: jlowin/fastmcp#532 Root Cause The _handle_get_request method's standalone_sse...

X Description: Problem GET requests to /mcp endpoint hang indefinitely when using streamable_http_app(). Related issue in FastMCP: jlowin/fastmcp#532 Root Cause The _handle_get_request method's standalone...

Opengraph URL: https://github.com/modelcontextprotocol/python-sdk/pull/1883

X: @github

direct link

Domain: patch-diff.githubusercontent.com

route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:12970cc0-ee56-1975-05c9-df9ff347f3e1
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idA5F2:3F5F77:93CBF50:C33E7D9:696DFB71
html-safe-nonce0b7bddcd0c6266b3bfef5feb50ee2bac085a31f49355caf88c9d62dcbadfd5c0
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJBNUYyOjNGNUY3Nzo5M0NCRjUwOkMzM0U3RDk6Njk2REZCNzEiLCJ2aXNpdG9yX2lkIjoiMjk1NjY3MjUxNzg4MDU0NDExMyIsInJlZ2lvbl9lZGdlIjoiaWFkIiwicmVnaW9uX3JlbmRlciI6ImlhZCJ9
visitor-hmacbc75eaadfa56915258b095249fd325eca47dc08c4803bffb7f498ae9ca2b4f30
hovercard-subject-tagpull_request:3180838220
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///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/modelcontextprotocol/python-sdk/1883/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/1b14e362d5189c00eba124cd20f5bce5d95c8407ee54ebc4de5c94642dd20595/modelcontextprotocol/python-sdk/pull/1883
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/1b14e362d5189c00eba124cd20f5bce5d95c8407ee54ebc4de5c94642dd20595/modelcontextprotocol/python-sdk/pull/1883
og:image:altProblem GET requests to /mcp endpoint hang indefinitely when using streamable_http_app(). Related issue in FastMCP: jlowin/fastmcp#532 Root Cause The _handle_get_request method's standalone_sse...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamewukai9203
hostnamegithub.com
expected-hostnamegithub.com
None4922b452d03cd8dbce479d866a11bc25b59ef6ee2da23aa9b0ddefa6bd4d0064
turbo-cache-controlno-preview
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
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release7e5ae23c70136152637ceee8d6faceb35596ec46
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883#start-of-content
https://patch-diff.githubusercontent.com/
Sign in https://patch-diff.githubusercontent.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F1883
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub SparkBuild and deploy intelligent appshttps://github.com/features/spark
GitHub ModelsManage and compare promptshttps://github.com/features/models
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
GitHub SponsorsFund open source developershttps://github.com/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/accelerator
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/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://patch-diff.githubusercontent.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F1883
Sign up https://patch-diff.githubusercontent.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=modelcontextprotocol%2Fpython-sdk
Reloadhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
Reloadhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
Reloadhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
modelcontextprotocol https://patch-diff.githubusercontent.com/modelcontextprotocol
python-sdkhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk
Notifications https://patch-diff.githubusercontent.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Fork 3k https://patch-diff.githubusercontent.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Star 21.2k https://patch-diff.githubusercontent.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk
Code https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk
Issues 239 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/issues
Pull requests 93 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pulls
Actions https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/actions
Projects 0 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/projects
Security Uh oh! There was an error while loading. Please reload this page. https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/security
Please reload this pagehttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
Insights https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pulse
Code https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk
Issues https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/issues
Pull requests https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pulls
Actions https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/actions
Projects https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/projects
Security https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/security
Insights https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pulse
Sign up for GitHub https://patch-diff.githubusercontent.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://patch-diff.githubusercontent.com/login?return_to=%2Fmodelcontextprotocol%2Fpython-sdk%2Fissues%2Fnew%2Fchoose
Jump to bottomhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883#issue-comment-box
wukai9203https://patch-diff.githubusercontent.com/wukai9203
modelcontextprotocol:mainhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/tree/main
wukai9203:fix/get-request-priming-eventhttps://patch-diff.githubusercontent.com/wukai9203/python-sdk/tree/fix/get-request-priming-event
fix: send priming event in GET handler to prevent hang https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883#top
wukai9203https://patch-diff.githubusercontent.com/wukai9203
modelcontextprotocol:mainhttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/tree/main
wukai9203:fix/get-request-priming-eventhttps://patch-diff.githubusercontent.com/wukai9203/python-sdk/tree/fix/get-request-priming-event
Conversation 0 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
Commits 1 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883/commits
Checks 22 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883/checks
Files changed 2 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883/files
https://github.co/hiddenchars
https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/{{ revealButtonHref }}
https://patch-diff.githubusercontent.com/wukai9203
wukai9203https://patch-diff.githubusercontent.com/wukai9203
Jan 16, 2026https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883#issue-3821539736
jlowin/fastmcp#532https://github.com/jlowin/fastmcp/issues/532
Please reload this pagehttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
https://patch-diff.githubusercontent.com/wukai9203
fix: send priming event in GET handler to prevent hanghttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883/commits/64daae5b9d578aeaca5ce0eace252a5b9598dfe4
64daae5https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883/commits/64daae5b9d578aeaca5ce0eace252a5b9598dfe4
jlowin/fastmcp#532https://github.com/jlowin/fastmcp/issues/532
https://patch-diff.githubusercontent.com/wukai9203
wukai9203https://patch-diff.githubusercontent.com/wukai9203
Jan 16, 2026 https://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883#ref-issue-3080217873
GET /mcp endpoint hangs with streamable HTTP app, causing timeouts in Claude integration jlowin/fastmcp#532 https://patch-diff.githubusercontent.com/jlowin/fastmcp/issues/532
Sign up for freehttps://patch-diff.githubusercontent.com/join?source=comment-repo
Sign in to commenthttps://patch-diff.githubusercontent.com/login?return_to=https%3A%2F%2Fgithub.com%2Fmodelcontextprotocol%2Fpython-sdk%2Fpull%2F1883
Please reload this pagehttps://patch-diff.githubusercontent.com/modelcontextprotocol/python-sdk/pull/1883
https://patch-diff.githubusercontent.com/wukai9203
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.