Publish

- @now/go@0.5.0
 - @now/next@0.4.0
 - @now/node-bridge@1.1.3
 - @now/node-server@0.7.3
 - @now/node@0.7.3
 - @now/python@0.2.4
 - @now/static-build@0.5.7

errors/now-static-build-failed-to-detect-a-server.md

@@ -0,0 +1,38 @@
+# `@now/static-build` Failed to detect a server running
+
+#### Why This Warning Occurred
+
+When running `now dev`, the `@now/static-build` builder proxies relevant HTTP
+requests to the server that is created by the `now-dev` script in the
+`package.json` file.
+
+In order for `now dev` to know which port the server is running on, the builder
+is provided a `$PORT` environment variable that the server *must* bind to. The
+error "Failed to detect a server running on port" is printed if the builder fails
+to detect a server listening on that specific port within five minutes.
+
+#### Possible Ways to Fix It
+
+Please ensure that your `now-dev` script binds the spawned development server on
+the provided `$PORT` that the builder expects the server to bind to.
+
+For example, if you are using Gatsby, your `now-dev` script must use the `-p`
+(port) option to bind to the `$PORT` specified from the builder:
+
+```
+{
+  ...
+  "scripts": {
+    ...
+    "now-dev": "gatsby develop -p $PORT"
+  }
+}
+```
+
+Consult your static builder program's `--help` or documentation to figure out what
+the command line flag to bind to a specific port is (in many cases, it is one of:
+`-p` / `-P` / `--port`).
+
+### Useful Links
+
+- [`@now/static-build` Local Development Documentation](https://zeit.co/docs/v2/deployments/official-builders/static-build-now-static-build#local-development)

jest.config.js

@@ -1,5 +1,37 @@
+const childProcess = require('child_process');
+const path = require('path');
+
+const command = 'git diff HEAD~1 --name-only';
+const diff = childProcess.execSync(command).toString();
+
+const changed = diff
+  .split('\n')
+  .filter(item => Boolean(item) && item.includes('packages/'))
+  .map(item => path.relative('packages', item).split('/')[0]);
+
+const matches = [];
+
+if (changed.length > 0) {
+  console.log('The following packages have changed:');
+
+  changed.map((item) => {
+    matches.push(item);
+    console.log(item);
+
+    return null;
+  });
+} else {
+  matches.push('now-node');
+  console.log(`No packages changed, defaulting to ${matches[0]}`);
+}
+
+const testMatch = Array.from(new Set(matches)).map(
+  item => `**/${item}/**/?(*.)+(spec|test).[jt]s?(x)`,
+);
+
 module.exports = {
   testEnvironment: 'node',
+  testMatch,
   collectCoverageFrom: [
     'packages/(!test)/**/*.{js,jsx}',
     '!**/node_modules/**',

packages/now-go/go-helpers.ts

@@ -125,7 +125,15 @@ export async function downloadGo(
   // If we found GOPATH in ENV, or default `Go` path exists
   // asssume that user have `Go` installed
   if (isUserGo || process.env.GOPATH !== undefined) {
-    return createGo(dir, platform, arch);
+    const { stdout } = await execa('go', ['version']);
+
+    if (parseInt(stdout.split('.')[1]) >= 11) {
+      return createGo(dir, platform, arch);
+    }
+
+    throw new Error(
+      `Your current ${stdout} doesn't support Go Modules. Please update.`
+    );
   } else {
     // Check `Go` bin in builder CWD
     const isGoExist = await pathExists(join(dir, 'bin'));

packages/now-go/index.ts

@@ -1,5 +1,7 @@
-import { join, sep, dirname } from 'path';
+import { join, sep, dirname, basename } from 'path';
-import { readFile, writeFile, pathExists, move } from 'fs-extra';
+import { readFile, writeFile, pathExists, move, copy } from 'fs-extra';
+import { homedir } from 'os';
+import execa from 'execa';
 
 import {
   glob,
@@ -29,6 +31,18 @@ interface BuildParamsType extends BuildOptions {
   meta: BuildParamsMeta;
 }
 
+// Initialize private git repo for Go Modules
+async function initPrivateGit(credentials: string) {
+  await execa('git', [
+    'config',
+    '--global',
+    'credential.helper',
+    `store --file ${join(homedir(), '.git-credentials')}`,
+  ]);
+
+  await writeFile(join(homedir(), '.git-credentials'), credentials);
+}
+
 export const version = 2;
 
 export const config = {
@@ -39,8 +53,14 @@ export async function build({
   files,
   entrypoint,
   config,
+  workPath,
   meta = {} as BuildParamsMeta,
 }: BuildParamsType) {
+  if (process.env.GIT_CREDENTIALS && !meta.isDev) {
+    console.log('Initialize Git credentials...');
+    await initPrivateGit(process.env.GIT_CREDENTIALS);
+  }
+
   console.log('Downloading user files...');
   const entrypointArr = entrypoint.split(sep);
 
@@ -49,26 +69,12 @@ export async function build({
     getWriteableDirectory(),
   ]);
 
-  if (meta.isDev) {
-    const devGoPath = `dev${entrypointArr[entrypointArr.length - 1]}`;
-    const goPathArr = goPath.split(sep);
-    goPathArr.pop();
-    goPathArr.push(devGoPath);
-    goPath = goPathArr.join(sep);
-  }
-
   const srcPath = join(goPath, 'src', 'lambda');
-  const downloadedFiles = await download(files, srcPath);
+  let downloadedFiles;
-  const input = dirname(downloadedFiles[entrypoint].fsPath);
+  if (meta.isDev) {
-  var includedFiles: Files = {};
+    downloadedFiles = await download(files, workPath, meta);
-
+  } else {
-  if (config && config.includeFiles) {
+    downloadedFiles = await download(files, srcPath);
-    for (const pattern of config.includeFiles) {
-      const files = await glob(pattern, input);
-      for (const assetName of Object.keys(files)) {
-        includedFiles[assetName] = files[assetName];
-      }
-    }
   }
 
   console.log(`Parsing AST for "${entrypoint}"`);
@@ -90,18 +96,71 @@ Learn more: https://zeit.co/docs/v2/deployments/official-builders/go-now-go/#ent
     throw err;
   }
 
+  const entrypointDirnameDev = dirname(downloadedFiles[entrypoint].fsPath);
   const parsedAnalyzed = JSON.parse(analyzed) as Analyzed;
 
+  if (meta.isDev) {
+    const base = dirname(downloadedFiles['now.json'].fsPath);
+    const destNow = join(
+      base,
+      '.now',
+      'cache',
+      basename(entrypoint, '.go'),
+      'src',
+      'lambda'
+    );
+    const goMod = await pathExists(join(entrypointDirnameDev, 'go.mod'));
+
+    // this will ensure Go rebuilt fast
+    goPath = join(base, '.now', 'cache', basename(entrypoint, '.go'));
+
+    for (const file of parsedAnalyzed.watch) {
+      if (entrypointArr.length > 0) {
+        await copy(
+          join(base, dirname(entrypoint), file),
+          join(destNow, dirname(entrypoint), file)
+        );
+
+        if (goMod) {
+          await copy(
+            join(entrypointDirnameDev, 'go.mod'),
+            join(destNow, dirname(entrypoint), 'go.mod')
+          );
+        }
+      } else {
+        await copy(join(base, file), join(destNow, file));
+
+        if (goMod) {
+          await copy(
+            join(entrypointDirnameDev, 'go.mod'),
+            join(destNow, 'go.mod')
+          );
+        }
+      }
+    }
+    downloadedFiles = await glob('**', destNow);
+  }
+
+  const entrypointDirname = dirname(downloadedFiles[entrypoint].fsPath);
+  const input = entrypointDirname;
+  var includedFiles: Files = {};
+
+  if (config && config.includeFiles) {
+    for (const pattern of config.includeFiles) {
+      const files = await glob(pattern, input);
+      for (const assetName of Object.keys(files)) {
+        includedFiles[assetName] = files[assetName];
+      }
+    }
+  }
+
   const handlerFunctionName = parsedAnalyzed.functionName;
   console.log(
     `Found exported function "${handlerFunctionName}" in "${entrypoint}"`
   );
 
-  // we need `main.go` in the same dir as the entrypoint,
-  // otherwise `go build` will refuse to build
-  const entrypointDirname = dirname(downloadedFiles[entrypoint].fsPath);
-
   // check if package name other than main
+  // using `go.mod` way building the handler
   const packageName = parsedAnalyzed.packageName;
   const isGoModExist = await pathExists(join(entrypointDirname, 'go.mod'));
   if (packageName !== 'main') {
@@ -228,6 +287,9 @@ Learn more: https://zeit.co/docs/v2/deployments/official-builders/go-now-go/#ent
       );
     }
   } else {
+    // legacy mode
+    // we need `main.go` in the same dir as the entrypoint,
+    // otherwise `go build` will refuse to build
     const go = await createGo(
       goPath,
       process.platform,

packages/now-go/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/go",
-  "version": "0.4.6",
+  "version": "0.5.0",
   "license": "MIT",
   "repository": {
     "type": "git",

packages/now-go/util/analyze.go

@@ -10,9 +10,22 @@ import (
 	"log"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
 )
 
+var ignoredFoldersRegex []*regexp.Regexp
+
+func init() {
+	ignoredFolders := []string{"vendor", "testdata", ".now"}
+
+	// Build the regex that matches if a path contains the respective ignored folder
+	// The pattern will look like: (.*/)?vendor/.*, which matches every path that contains a vendor folder
+	for _, folder := range ignoredFolders {
+		ignoredFoldersRegex = append(ignoredFoldersRegex, regexp.MustCompile("(.*/)?"+folder+"/.*"))
+	}
+}
+
 type analyze struct {
 	PackageName string   `json:"packageName"`
 	FuncName    string   `json:"functionName"`
@@ -40,8 +53,9 @@ func visit(files *[]string) filepath.WalkFunc {
 		}
 
 		// we don't need Dirs, or test files
-		// we only want `.go` files
+		// we only want `.go` files. Further, we ignore
-		if info.IsDir() || itf || filepath.Ext(path) != ".go" {
+		// every file that is in one of the ignored folders.
+		if info.IsDir() || itf || filepath.Ext(path) != ".go" || isInIgnoredFolder(path) {
 			return nil
 		}
 
@@ -50,6 +64,19 @@ func visit(files *[]string) filepath.WalkFunc {
 	}
 }
 
+// isInIgnoredFolder checks if the given path is in one of the ignored folders.
+func isInIgnoredFolder(path string) bool {
+	// Make sure the regex works for Windows paths
+	path = filepath.ToSlash(path)
+
+	for _, pattern := range ignoredFoldersRegex {
+		if pattern.MatchString(path) {
+			return true
+		}
+	}
+	return false
+}
+
 // return unique file
 func unique(files []string) []string {
 	encountered := map[string]bool{}

packages/now-next/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/next",
-  "version": "0.3.2",
+  "version": "0.4.0",
   "license": "MIT",
   "main": "./dist/index",
   "scripts": {
@@ -14,7 +14,7 @@
     "directory": "packages/now-next"
   },
   "dependencies": {
-    "@now/node-bridge": "^1.1.2",
+    "@now/node-bridge": "^1.1.3",
     "fs-extra": "^7.0.0",
     "get-port": "^5.0.0",
     "resolve-from": "^5.0.0",

packages/now-next/src/index.ts

@@ -155,14 +155,13 @@ export const build = async ({
   entrypoint,
   meta = {} as BuildParamsMeta,
 }: BuildParamsType): Promise<{
-  routes?: any[];
+  routes?: { src: string; dest: string }[];
   output: Files;
   watch?: string[];
   childProcesses: ChildProcess[];
 }> => {
   validateEntrypoint(entrypoint);
 
-  const routes: any[] = [];
   const entryDirectory = path.dirname(entrypoint);
   const entryPath = path.join(workPath, entryDirectory);
   const dotNext = path.join(entryPath, '.next');
@@ -191,6 +190,10 @@ export const build = async ({
       console.log(`${name} Installing dependencies...`);
       await runNpmInstall(entryPath, ['--prefer-offline']);
 
+      if (!process.env.NODE_ENV) {
+        process.env.NODE_ENV = 'development';
+      }
+
       // The runtime env vars consist of the base `process.env` vars, but with the
       // build env vars removed, and the runtime env vars mixed in afterwards
       const runtimeEnv: EnvConfig = Object.assign({}, process.env);
@@ -285,7 +288,9 @@ export const build = async ({
     await unlinkFile(path.join(entryPath, '.npmrc'));
   }
 
+  const routes: { src: string; dest: string }[] = [];
   const lambdas: { [key: string]: Lambda } = {};
+  const staticPages: { [key: string]: FileFsRef } = {};
 
   if (isLegacy) {
     const filesAfterBuild = await glob('**', entryPath);
@@ -377,10 +382,21 @@ export const build = async ({
         fsPath: path.join(__dirname, 'launcher.js'),
       }),
     };
-    const pages = await glob(
+    const pagesDir = path.join(entryPath, '.next', 'serverless', 'pages');
-      '**/*.js',
+
-      path.join(entryPath, '.next', 'serverless', 'pages')
+    const pages = await glob('**/*.js', pagesDir);
-    );
+    const staticPageFiles = await glob('**/*.html', pagesDir);
+
+    Object.keys(staticPageFiles).forEach((page: string) => {
+      const staticRoute = path.join(entryDirectory, page);
+      staticPages[staticRoute] = staticPageFiles[page];
+
+      const pathname = page.replace(/\.html$/, '');
+      routes.push({
+        src: `^${path.join('/', entryDirectory, pathname)}$`,
+        dest: path.join('/', staticRoute),
+      });
+    });
 
     const pageKeys = Object.keys(pages);
 
@@ -469,10 +485,11 @@ export const build = async ({
     output: {
       ...publicFiles,
       ...lambdas,
+      ...staticPages,
       ...staticFiles,
       ...staticDirectoryFiles,
     },
-    routes: [],
+    routes,
     watch: [],
     childProcesses: [],
   };

packages/now-node-bridge/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/node-bridge",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "license": "MIT",
   "main": "./index.js",
   "repository": {

packages/now-node-bridge/src/bridge.ts

@@ -1,10 +1,10 @@
 import { AddressInfo } from 'net';
-import { APIGatewayProxyEvent } from 'aws-lambda';
+import { APIGatewayProxyEvent, Context } from 'aws-lambda';
 import {
   Server,
   IncomingHttpHeaders,
   OutgoingHttpHeaders,
-  request
+  request,
 } from 'http';
 
 interface NowProxyEvent {
@@ -133,25 +133,25 @@ export class Bridge {
 
     return this.server.listen({
       host: '127.0.0.1',
-      port: 0
+      port: 0,
     });
   }
 
   async launcher(
-    event: NowProxyEvent | APIGatewayProxyEvent
+    event: NowProxyEvent | APIGatewayProxyEvent,
+    context: Context
   ): Promise<NowProxyResponse> {
+    context.callbackWaitsForEmptyEventLoop = false;
     const { port } = await this.listening;
 
-    const { isApiGateway, method, path, headers, body } = normalizeEvent(
+    const { isApiGateway, method, path, headers, body } = normalizeEvent(event);
-      event
-    );
 
     const opts = {
       hostname: '127.0.0.1',
       port,
       path,
       method,
-      headers
+      headers,
     };
 
     // eslint-disable-next-line consistent-return
@@ -175,7 +175,7 @@ export class Bridge {
             statusCode: response.statusCode || 200,
             headers: response.headers,
             body: bodyBuffer.toString('base64'),
-            encoding: 'base64'
+            encoding: 'base64',
           });
         });
       });

packages/now-node-bridge/test/bridge.test.js

@@ -16,56 +16,70 @@ test('port binding', async () => {
 });
 
 test('`APIGatewayProxyEvent` normalizing', async () => {
-  const server = new Server((req, res) => res.end(
+  const server = new Server((req, res) =>
-    JSON.stringify({
+    res.end(
-      method: req.method,
+      JSON.stringify({
-      path: req.url,
+        method: req.method,
-      headers: req.headers,
+        path: req.url,
-    }),
+        headers: req.headers,
-  ));
+      })
+    )
+  );
   const bridge = new Bridge(server);
   bridge.listen();
-  const result = await bridge.launcher({
+  const context = {};
-    httpMethod: 'GET',
+  const result = await bridge.launcher(
-    headers: { foo: 'bar' },
+    {
-    path: '/apigateway',
+      httpMethod: 'GET',
-    body: null,
+      headers: { foo: 'bar' },
-  });
+      path: '/apigateway',
+      body: null,
+    },
+    context
+  );
   assert.equal(result.encoding, 'base64');
   assert.equal(result.statusCode, 200);
   const body = JSON.parse(Buffer.from(result.body, 'base64').toString());
   assert.equal(body.method, 'GET');
   assert.equal(body.path, '/apigateway');
   assert.equal(body.headers.foo, 'bar');
+  assert.equal(context.callbackWaitsForEmptyEventLoop, false);
 
   server.close();
 });
 
 test('`NowProxyEvent` normalizing', async () => {
-  const server = new Server((req, res) => res.end(
+  const server = new Server((req, res) =>
-    JSON.stringify({
+    res.end(
-      method: req.method,
+      JSON.stringify({
-      path: req.url,
+        method: req.method,
-      headers: req.headers,
+        path: req.url,
-    }),
+        headers: req.headers,
-  ));
+      })
+    )
+  );
   const bridge = new Bridge(server);
   bridge.listen();
-  const result = await bridge.launcher({
+  const context = { callbackWaitsForEmptyEventLoop: true };
-    Action: 'Invoke',
+  const result = await bridge.launcher(
-    body: JSON.stringify({
+    {
-      method: 'POST',
+      Action: 'Invoke',
-      headers: { foo: 'baz' },
+      body: JSON.stringify({
-      path: '/nowproxy',
+        method: 'POST',
-      body: 'body=1',
+        headers: { foo: 'baz' },
-    }),
+        path: '/nowproxy',
-  });
+        body: 'body=1',
+      }),
+    },
+    context
+  );
   assert.equal(result.encoding, 'base64');
   assert.equal(result.statusCode, 200);
   const body = JSON.parse(Buffer.from(result.body, 'base64').toString());
   assert.equal(body.method, 'POST');
   assert.equal(body.path, '/nowproxy');
   assert.equal(body.headers.foo, 'baz');
+  assert.equal(context.callbackWaitsForEmptyEventLoop, false);
 
   server.close();
 });

packages/now-node-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/node-server",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "license": "MIT",
   "repository": {
     "type": "git",
@@ -8,7 +8,7 @@
     "directory": "packages/now-node-server"
   },
   "dependencies": {
-    "@now/node-bridge": "^1.1.2",
+    "@now/node-bridge": "^1.1.3",
     "@zeit/ncc": "0.18.5",
     "fs-extra": "7.0.1"
   },

packages/now-node/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/node",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "license": "MIT",
   "main": "./dist/index",
   "repository": {
@@ -9,7 +9,7 @@
     "directory": "packages/now-node"
   },
   "dependencies": {
-    "@now/node-bridge": "^1.1.2",
+    "@now/node-bridge": "^1.1.3",
     "@zeit/ncc": "0.18.5",
     "fs-extra": "7.0.1"
   },

packages/now-python/index.ts

@@ -1,4 +1,4 @@
-import { join, dirname } from 'path';
+import { join, dirname, basename } from 'path';
 import execa from 'execa';
 import fs from 'fs';
 import { promisify } from 'util';
@@ -73,7 +73,16 @@ export const build = async ({
   meta = {},
 }: BuildOptions) => {
   console.log('downloading files...');
-  const downloadedFiles = await download(originalFiles, workPath, meta);
+  let downloadedFiles = await download(originalFiles, workPath, meta);
+
+  if (meta.isDev) {
+    const base = dirname(downloadedFiles['now.json'].fsPath);
+    const destNow = join(base, '.now', 'cache', basename(entrypoint, '.py'));
+    await download(downloadedFiles, destNow);
+    downloadedFiles = await glob('**', destNow);
+    workPath = destNow;
+  }
+
   const foundLockFile = 'Pipfile.lock' in downloadedFiles;
   const pyUserBase = await getWriteableDirectory();
   process.env.PYTHONUSERBASE = pyUserBase;

packages/now-python/now_init.py

@@ -22,6 +22,7 @@ _now_imported, _now_is_legacy = _now_get_import()
 if _now_is_legacy:
     print('using HTTP Handler')
     from http.server import HTTPServer
+    from urllib.parse import unquote
     import requests
     import _thread
     server = HTTPServer(('', 0), _now_imported)
@@ -30,7 +31,7 @@ if _now_is_legacy:
         _thread.start_new_thread(server.handle_request, ())
 
         payload = json.loads(event['body'])
-        path = payload['path']
+        path = unquote(payload['path'])
         headers = payload['headers']
         method = payload['method']
         encoding = payload.get('encoding')
@@ -53,10 +54,7 @@ if _now_is_legacy:
 else:
     print('using Web Server Gateway Interface (WSGI)')
     import sys
-    try:
+    from urllib.parse import urlparse, unquote
-        from urllib.parse import urlparse
-    except ImportError:
-        from urlparse import urlparse
     from werkzeug._compat import BytesIO
     from werkzeug._compat import string_types
     from werkzeug._compat import to_bytes
@@ -75,13 +73,14 @@ else:
         if isinstance(body, string_types):
             body = to_bytes(body, charset='utf-8')
 
-        urlinfo = urlparse(payload['path'])
+        path = unquote(payload['path'])
+        query = urlparse(path).query
 
         environ = {
             'CONTENT_LENGTH': str(len(body)),
             'CONTENT_TYPE': headers.get('content-type', ''),
-            'PATH_INFO': payload['path'],
+            'PATH_INFO': path,
-            'QUERY_STRING': urlinfo.query,
+            'QUERY_STRING': query,
             'REMOTE_ADDR': headers.get(
                 'x-forwarded-for', headers.get(
                     'x-real-ip', payload.get(
@@ -102,7 +101,7 @@ else:
         }
 
         for key, value in environ.items():
-            if isinstance(value, string_types):
+            if isinstance(value, string_types) and key != 'QUERY_STRING':
                 environ[key] = wsgi_encoding_dance(value)
 
         for key, value in headers.items():

packages/now-python/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/python",
-  "version": "0.2.2",
+  "version": "0.2.4",
   "main": "index.js",
   "license": "MIT",
   "repository": {

packages/now-python/test/fixtures/09-url-params/custom.py

@@ -0,0 +1,7 @@
+from flask import Flask, Response, __version__
+app = Flask(__name__)
+
+@app.route('/', defaults={'path': ''})
+@app.route('/<path:path>')
+def catch_all(path):
+    return Response("path=%s" %(path), mimetype='text/html')

packages/now-python/test/fixtures/09-url-params/index.py

@@ -0,0 +1,7 @@
+from flask import Flask, Response, __version__
+app = Flask(__name__)
+
+@app.route('/', defaults={'path': ''})
+@app.route('/<path:path>')
+def catch_all(path):
+    return Response("path=%s" %(path), mimetype='text/html')

packages/now-python/test/fixtures/09-url-params/now.json

@@ -0,0 +1,13 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "*.py", "use": "@now/python" }
+  ],
+  "routes": [
+    { "src": "/another", "dest": "custom.py" }
+  ],
+  "probes": [
+    { "path": "/?hello=/", "mustContain": "path=?hello=/" },
+    { "path": "/another?hello=/", "mustContain": "path=another?hello=/" }
+  ]
+}

packages/now-python/test/fixtures/09-url-params/requirements.txt

@@ -0,0 +1 @@
+Flask==1.0.2

packages/now-python/test/fixtures/10-url-params-http-handler/custom.py

@@ -0,0 +1,8 @@
+from http.server import BaseHTTPRequestHandler
+
+class handler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        self.send_response(200)
+        self.end_headers()
+        self.wfile.write(str("path=").encode()+self.path.encode())
+        return

packages/now-python/test/fixtures/10-url-params-http-handler/index.py

@@ -0,0 +1,8 @@
+from http.server import BaseHTTPRequestHandler
+
+class handler(BaseHTTPRequestHandler):
+    def do_GET(self):
+        self.send_response(200)
+        self.end_headers()
+        self.wfile.write(str("path=").encode()+self.path.encode())
+        return

packages/now-python/test/fixtures/10-url-params-http-handler/now.json

@@ -0,0 +1,13 @@
+{
+  "version": 2,
+  "builds": [
+    { "src": "*.py", "use": "@now/python" }
+  ],
+  "routes": [
+    { "src": "/another", "dest": "custom.py" }
+  ],
+  "probes": [
+    { "path": "/?hello=/", "mustContain": "path=/?hello=/" },
+    { "path": "/another?hello=/", "mustContain": "path=/another?hello=/" }
+  ]
+}

packages/now-static-build/index.js

@@ -88,7 +88,7 @@ exports.build = async ({
           );
         } catch (err) {
           throw new Error(
-            `Failed to detect a server running on port ${devPort}`,
+            `Failed to detect a server running on port ${devPort}.\nDetails: https://err.sh/zeit/now-builders/now-static-build-failed-to-detect-a-server`,
           );
         }
 
@@ -101,7 +101,7 @@ exports.build = async ({
       }
       routes.push({
         src: `${srcBase}/(.*)`,
-        dest: `http://localhost:${devPort}${srcBase}/$1`,
+        dest: `http://localhost:${devPort}/$1`,
       });
     } else {
       if (meta.isDev) {

packages/now-static-build/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@now/static-build",
-  "version": "0.5.5",
+  "version": "0.5.7",
   "license": "MIT",
   "repository": {
     "type": "git",