Fix "The header content contains invalid characters" error #20
Description
The stack trace is below. Also, it seems that ProxyChain server is emitting connectionClosed event for this connection, although prepareRequestFunction is never called for the connection.
Aug 17 02:43:32 ip-172-31-92-139 [email protected] ERROR {"level":"ERROR","msg":"Unexpected error in ProxyChain server","url":"http://www.acmetools.com/shop/tools/router-tables","exception":{"name":"TypeError","message":"The header content contains invalid characters","stack":"TypeError: The header content contains invalid characters\n at validateHeader (_http_outgoing.js:494:11)\n at ClientRequest.setHeader (_http_outgoing.js:498:3)\n at new ClientRequest (_http_client.js:173:14)\n at Object.request (http.js:38:10)\n at HandlerForward.run (/home/apifier/proxy/node_modules/proxy-chain/build/handler_forward.js:125:46)\n at Server.handlerRun (/home/apifier/proxy/node_modules/proxy-chain/build/server.js:411:21)\n at /home/apifier/proxy/node_modules/proxy-chain/build/server.js:208:24\n at tryCatcher (/home/apifier/proxy/node_modules/bluebird/js/release/util.js:16:23)\n at Promise._settlePromiseFromHandler (/home/apifier/proxy/node_modules/bluebird/js/release/promise.js:512:31)\n at Promise._settlePromise (/home/apifier/proxy/node_modules/bluebird/js/release/promise.js:569:18)\n at Promise._settlePromise0 (/home/apifier/proxy/node_modules/bluebird/js/release/promise.js:614:10)\n at Promise._settlePromises (/home/apifier/proxy/node_modules/bluebird/js/release/promise.js:693:18)\n at Async._drainQueue (/home/apifier/proxy/node_modules/bluebird/js/release/async.js:133:16)\n at Async._drainQueues (/home/apifier/proxy/node_modules/bluebird/js/release/async.js:143:10)\n at Immediate.Async.drainQueues (/home/apifier/proxy/node_modules/bluebird/js/release/async.js:17:14)\n at runCallback (timers.js:810:20)\n at tryOnImmediate (timers.js:768:5)\n at processImmediate [as _immediateCallback] (timers.js:745:5)"}}