Headscale throws a server error when machine keys are not 24 characters

[Anilo1990]

Description

Button "Add Device" -> "Register Machine Key" I type in a Key and set a User and click "confirm".
After that I get a message "Unexpected Server Error".

Browser Console

Logs from Headplane
2025-12-28T11:21:22.389659180Z status: 500,
2025-12-28T11:21:22.389662434Z response: '{"code":2, "message":"registration ID must be 24 characters long", "details":[]}',
2025-12-28T11:21:22.389665839Z responseObject: {
2025-12-28T11:21:22.389668784Z code: 2,
2025-12-28T11:21:22.389672139Z message: 'registration ID must be 24 characters long',
2025-12-28T11:21:22.389675928Z details: []
2025-12-28T11:21:22.389679655Z }
2025-12-28T11:21:22.389683803Z }
2025-12-28T11:23:45.012361351Z ResponseError: Response Error (500): {"code":2, "message":"registration ID must be 24 characters long", "details":[]}
2025-12-28T11:23:45.012547366Z at ApiClient.post (file:///app/build/server/assets/api-client-DTldznvl.js:174:10)
2025-12-28T11:23:45.012553092Z at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
2025-12-28T11:23:45.012556956Z at async registerMachine (file:///app/build/server/assets/server-build.js:3178:19)
2025-12-28T11:23:45.012561023Z at async callRouteHandler (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-IFMMFE4R.mjs:509:16)
2025-12-28T11:23:45.012565109Z at async file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4327:19
2025-12-28T11:23:45.012569392Z at async callLoaderOrAction (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4379:16)
2025-12-28T11:23:45.012573376Z at async Promise.all (index 0)
2025-12-28T11:23:45.012576914Z at async defaultDataStrategy (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:3940:17)
2025-12-28T11:23:45.012580900Z at async callDataStrategyImpl (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4275:17)
2025-12-28T11:23:45.012585000Z at async callDataStrategy (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:3273:19) {
2025-12-28T11:23:45.012589022Z status: 500,
2025-12-28T11:23:45.012592616Z response: '{"code":2, "message":"registration ID must be 24 characters long", "details":[]}',
2025-12-28T11:23:45.012596707Z responseObject: {
2025-12-28T11:23:45.012600169Z code: 2,
2025-12-28T11:23:45.012603619Z message: 'registration ID must be 24 characters long',
2025-12-28T11:23:45.012607627Z details: []
2025-12-28T11:23:45.012611080Z }
2025-12-28T11:23:45.012614522Z }
2025-12-28T11:24:16.223494094Z ResponseError: Response Error (500): {"code":2, "message":"node not found in registration cache", "details":[]}
2025-12-28T11:24:16.223659471Z at ApiClient.post (file:///app/build/server/assets/api-client-DTldznvl.js:174:10)
2025-12-28T11:24:16.223665173Z at process.processTicksAndRejections (node:internal/process/task_queues:105:5)
2025-12-28T11:24:16.223669109Z at async registerMachine (file:///app/build/server/assets/server-build.js:3178:19)
2025-12-28T11:24:16.223673029Z at async callRouteHandler (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-IFMMFE4R.mjs:509:16)
2025-12-28T11:24:16.223676988Z at async file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4327:19
2025-12-28T11:24:16.223680912Z at async callLoaderOrAction (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4379:16)
2025-12-28T11:24:16.223684899Z at async Promise.all (index 0)
2025-12-28T11:24:16.223688659Z at async defaultDataStrategy (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:3940:17)
2025-12-28T11:24:16.223692585Z at async callDataStrategyImpl (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:4275:17)
2025-12-28T11:24:16.223696508Z at async callDataStrategy (file:///app/node_modules/.pnpm/react-router@7.8.1_react-dom@19.1.1_react@19.1.1__react@19.1.1/node_modules/react-router/dist/development/chunk-UH6JLGW7.mjs:3273:19) {
2025-12-28T11:24:16.223700427Z status: 500,
2025-12-28T11:24:16.223704081Z response: '{"code":2, "message":"node not found in registration cache", "details":[]}',
2025-12-28T11:24:16.223708266Z responseObject: {
2025-12-28T11:24:16.223712134Z code: 2,
2025-12-28T11:24:16.223715771Z message: 'node not found in registration cache',
2025-12-28T11:24:16.223719524Z details: []
2025-12-28T11:24:16.223723204Z }
2025-12-28T11:24:16.223726866Z }

Still don't know what to do with "node not found in registration cache"

Headplane Version

v0.6.1

Headscale Version

v0.27.1

[tale]

Yeah this is fixable, thank you for opening the issue.