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Just a reduced reproduction of a bug (or at least, something that isn't working)

branch: master

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Octocat-spinner-32-eaf2f5

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Octocat-spinner-32 views
Octocat-spinner-32 README.md
Octocat-spinner-32 package.json
Octocat-spinner-32 server.js
Octocat-spinner-32 test.sh
README.md

Breaking change from express 1.0 to 2.0, where partials don't return a string, and cause res.send() to be called more than once.

$ sh test.sh
DOING PUT
---------
{ '0.17779993172734976': 'Thu, 30 Jun 2011 02:12:10 GMT' }
<!DOCTYPE html>
<html lang="en-US">
<body>
<h1>PUTted a message</h1>

</body>
</html>
---------
DOING GET
---------
Error: Can't use mutable header APIs after sent.
    at ServerResponse.getHeader (http.js:544:11)
    at ServerResponse.header (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/response.js:278:17)
    at ServerResponse.send (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/response.js:66:17)
    at ServerResponse._render (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/view.js:442:10)
    at ServerResponse.render (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/view.js:316:17)
    at ServerResponse._render (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/view.js:432:10)
    at ServerResponse.render (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/view.js:316:17)
    at Router.<anonymous> (/Users/isaacs/dev-src/js/express-partial-break/server.js:19:7)
    at done (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:250:22)
    at middleware (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:244:9)
<p>Messages:

Error: Can't set headers after they are sent.
    at ServerResponse.<anonymous> (http.js:527:11)
    at ServerResponse.setHeader (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/patch.js:47:22)
    at IncomingMessage.next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:168:13)
    at ServerResponse.render (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/view.js:327:16)
    at Router.<anonymous> (/Users/isaacs/dev-src/js/express-partial-break/server.js:19:7)
    at done (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:250:22)
    at middleware (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:244:9)
    at param (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:227:11)
    at pass (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index<pre>{
  &quot;0.17779993172734976&quot;: &quot;Thu, 30 Jun 2011 02:12:10 GMT&quot;
}</pre>


.js:232:6)
    at Router._dispatch (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:255:4)
Error: Can't set headers after they are sent.
    at ServerResponse.<anonymous> (http.js:527:11)
    at ServerResponse.setHeader (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/patch.js:47:22)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:168:13)
    at param (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:230:9)
    at pass (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:232:6)
    at Router._dispatch (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:255:4)
    at Object.handle (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/router/index.js:45:10)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:204:15)
    at Object.handle (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/http.js:85:5)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:204:15)
Error: Can't set headers after they are sent.
    at ServerResponse.<anonymous> (http.js:527:11)
    at ServerResponse.setHeader (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/patch.js:47:22)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:168:13)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:213:9)
    at Object.handle (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/lib/http.js:85:5)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:204:15)
    at HTTPServer.handle (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:217:3)
    at HTTPServer.emit (events.js:67:17)
    at HTTPParser.onIncoming (http.js:1124:12)
    at HTTPParser.onHeadersComplete (http.js:108:31)

http.js:527
    throw new Error("Can't set headers after they are sent.");
          ^

Error: Can't set headers after they are sent.
    at ServerResponse.<anonymous> (http.js:527:11)
    at ServerResponse.setHeader (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/patch.js:47:22)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:168:13)
    at next (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:213:9)
    at HTTPServer.handle (/Users/isaacs/dev-src/js/express-partial-break/node_modules/express/node_modules/connect/lib/http.js:217:3)
    at HTTPServer.emit (events.js:67:17)
    at HTTPParser.onIncoming (http.js:1124:12)
    at HTTPParser.onHeadersComplete (http.js:108:31)
    at Socket.ondata (http.js:1019:22)
    at Socket._onReadable (net.js:683:27)
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