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[fix] perf optimization so we have a precompiled regexp

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Jarrett Cruger 2014-09-17 07:53:18 -04:00
parent 90d40d6a6a
commit c0a796b3e3
1 changed files with 2 additions and 1 deletions
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3
lib/http-proxy/common.js
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@ -2,6 +2,7 @@ var common = exports,
url = require('url'),
extend = require('util')._extend;
var upgradeHeader = /(^|,)\s*upgrade\s*($|,)/i;
/**
* Copies the right headers from `options` and `req` to
* `outgoing` which is then used to fire the proxied
@ -53,7 +54,7 @@ common.setupOutgoing = function(outgoing, options, req, forward) {
if (!outgoing.agent) {
outgoing.headers = outgoing.headers || {};
if (typeof outgoing.headers.connection !== 'string'
|| ! /(^|,)\s*upgrade\s*($|,)/i.test(outgoing.headers.connection)
|| ! upgradeHeader.test(outgoing.headers.connection)
) { outgoing.headers.connection = 'close'; }
}