Error

{"version":3,"file":"plugin.js","sources":["../../../src/dev-server-plugin/plugin.ts"],"sourcesContent":["import { isRunnableDevEnvironment } from 'vite'\nimport { VIRTUAL_MODULES } from '@tanstack/start-server-core'\nimport { NodeRequest, sendNodeResponse } from 'srvx/node'\nimport { ENTRY_POINTS, VITE_ENVIRONMENT_NAMES } from '../constants'\nimport { resolveViteId } from '../utils'\nimport { extractHtmlScripts } from './extract-html-scripts'\nimport {\n CSS_MODULES_REGEX,\n collectDevStyles,\n normalizeCssModuleCacheKey,\n} from './dev-styles'\nimport type { Connect, DevEnvironment, PluginOption } from 'vite'\nimport type { GetConfigFn } from '../types'\n\nexport function devServerPlugin({\n getConfig,\n devSsrStylesEnabled,\n}: {\n getConfig: GetConfigFn\n devSsrStylesEnabled: boolean\n}): PluginOption {\n let isTest = false\n\n let injectedHeadScripts: string | undefined\n\n // Cache CSS modules content during transform hook.\n // For CSS modules, the transform hook receives the raw CSS content before\n // Vite wraps it in JS. We capture this to use during SSR style collection.\n const cssModulesCache: Record = {}\n\n return [\n {\n name: 'tanstack-start-core:dev-server',\n config(_userConfig, { mode }) {\n isTest = isTest ? isTest : mode === 'test'\n },\n // Capture CSS modules content during transform\n transform: {\n filter: {\n id: CSS_MODULES_REGEX,\n },\n handler(code, id) {\n cssModulesCache[normalizeCssModuleCacheKey(id)] = code\n },\n },\n async configureServer(viteDevServer) {\n if (isTest) {\n return\n }\n\n // Extract the scripts that Vite plugins would inject into the initial HTML\n const templateHtml = ``\n const transformedHtml = await viteDevServer.transformIndexHtml(\n '/',\n templateHtml,\n )\n const scripts = extractHtmlScripts(transformedHtml)\n injectedHeadScripts = scripts\n .flatMap((script) => script.content ?? [])\n .join(';')\n\n // CSS middleware registered in PRE-PHASE (before Vite's internal middlewares)\n // This ensures it handles /@tanstack-start/styles.css before any catch-all middleware\n // from other plugins (like nitro) that may be registered in the post-phase.\n // This makes the CSS endpoint work regardless of plugin order in the Vite config.\n // We check pathname.endsWith() to handle basepaths (e.g., /my-app/@tanstack-start/styles.css)\n // since pre-phase runs before Vite's base middleware strips the basepath.\n if (devSsrStylesEnabled) {\n viteDevServer.middlewares.use(async (req, res, next) => {\n const url = req.url ?? ''\n const pathname = url.split('?')[0]\n if (!pathname?.endsWith('/@tanstack-start/styles.css')) {\n return next()\n }\n\n try {\n // Parse route IDs from query param\n const urlObj = new URL(url, 'http://localhost')\n const routesParam = urlObj.searchParams.get('routes')\n const routeIds = routesParam ? routesParam.split(',') : []\n\n // Build entries list from route file paths\n const entries: Array = []\n\n // Look up route file paths from manifest\n // Only routes registered in the manifest are used - this prevents path injection\n const routesManifest = (globalThis as any).TSS_ROUTES_MANIFEST as\n | Record }>\n | undefined\n\n if (routesManifest && routeIds.length > 0) {\n for (const routeId of routeIds) {\n const route = routesManifest[routeId]\n if (route?.filePath) {\n entries.push(route.filePath)\n }\n }\n }\n\n const css =\n entries.length > 0\n ? await collectDevStyles({\n viteDevServer,\n entries,\n cssModulesCache,\n })\n : undefined\n\n res.setHeader('Content-Type', 'text/css')\n res.setHeader('Cache-Control', 'no-store')\n res.end(css ?? '')\n } catch (e) {\n // Log error but still return valid CSS response to avoid MIME type issues\n console.error('[tanstack-start] Error collecting dev styles:', e)\n res.setHeader('Content-Type', 'text/css')\n res.setHeader('Cache-Control', 'no-store')\n res.end(\n `/* Error collecting styles: ${e instanceof Error ? e.message : String(e)} */`,\n )\n }\n })\n }\n\n return () => {\n const serverEnv = viteDevServer.environments[\n VITE_ENVIRONMENT_NAMES.server\n ] as DevEnvironment | undefined\n\n if (!serverEnv) {\n throw new Error(\n `Server environment ${VITE_ENVIRONMENT_NAMES.server} not found`,\n )\n }\n\n const { startConfig } = getConfig()\n const installMiddleware = startConfig.vite?.installDevServerMiddleware\n if (installMiddleware === false) {\n return\n }\n if (installMiddleware == undefined) {\n // do not install middleware in middlewareMode by default\n if (viteDevServer.config.server.middlewareMode) {\n return\n }\n\n // do not install middleware if SSR env in case another plugin already did\n if (\n !isRunnableDevEnvironment(serverEnv) ||\n // do not check via `isFetchableDevEnvironment` since nitro does implement the `FetchableDevEnvironment` interface but not via inheritance (which this helper checks)\n 'dispatchFetch' in serverEnv\n ) {\n return\n }\n }\n\n if (!isRunnableDevEnvironment(serverEnv)) {\n throw new Error(\n 'cannot install vite dev server middleware for TanStack Start since the SSR environment is not a RunnableDevEnvironment',\n )\n }\n\n viteDevServer.middlewares.use(async (req, res) => {\n // fix the request URL to match the original URL\n // otherwise, the request URL will '/index.html'\n if (req.originalUrl) {\n req.url = req.originalUrl\n }\n const webReq = new NodeRequest({ req, res })\n\n try {\n // Import and resolve the request by running the server request entry point\n // this request entry point must implement the `fetch` API as follows:\n /**\n * export default {\n * fetch(req: Request): Promise\n * }\n */\n const serverEntry = await serverEnv.runner.import(\n ENTRY_POINTS.server,\n )\n const webRes = await serverEntry['default'].fetch(webReq)\n\n return sendNodeResponse(res, webRes)\n } catch (e) {\n console.error(e)\n try {\n viteDevServer.ssrFixStacktrace(e as Error)\n } catch {}\n\n if (\n webReq.headers.get('content-type')?.includes('application/json')\n ) {\n return sendNodeResponse(\n res,\n new Response(\n JSON.stringify(\n {\n status: 500,\n error: 'Internal Server Error',\n message:\n 'An unexpected error occurred. Please try again later.',\n timestamp: new Date().toISOString(),\n },\n null,\n 2,\n ),\n {\n status: 500,\n headers: {\n 'Content-Type': 'application/json',\n },\n },\n ),\n )\n }\n\n return sendNodeResponse(\n res,\n new Response(\n `\n \n \n \n \n Error\n \n \n \n \n \n `,\n {\n status: 500,\n headers: {\n 'Content-Type': 'text/html',\n },\n },\n ),\n )\n }\n })\n }\n },\n },\n {\n name: 'tanstack-start-core:dev-server:injected-head-scripts',\n sharedDuringBuild: true,\n applyToEnvironment: (env) => env.config.consumer === 'server',\n resolveId: {\n filter: { id: new RegExp(VIRTUAL_MODULES.injectedHeadScripts) },\n handler(_id) {\n return resolveViteId(VIRTUAL_MODULES.injectedHeadScripts)\n },\n },\n load: {\n filter: {\n id: new RegExp(resolveViteId(VIRTUAL_MODULES.injectedHeadScripts)),\n },\n handler() {\n const mod = `\n export const injectedHeadScripts = ${JSON.stringify(injectedHeadScripts) || 'undefined'}`\n return mod\n },\n },\n },\n ]\n}\n\n/**\n * Formats error for SSR message in error overlay\n * @param req\n * @param error\n * @returns\n */\nfunction prepareError(req: Connect.IncomingMessage, error: unknown) {\n const e = error as Error\n return {\n message: `An error occurred while server rendering ${req.url}:\\n\\n\\t${\n typeof e === 'string' ? e : e.message\n } `,\n stack: typeof e === 'string' ? 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