Karma-junit-reporter 0.4.0 - build fails on UNIX system

[urbanq]

0.3.8 pass correctly.
problem:
14:37:48 [ERROR] Missing error handler on socket.
14:37:48 [ERROR] TypeError: Cannot read property 'charAt' of undefined
14:37:48 [ERROR] at posix (/opt/home/jenkins/workspace/APP/node_modules/karma-junit-reporter/node_modules/path-is-absolute/index.js:4:13)
14:37:48 [ERROR] at writeXmlForBrowser (/opt/home/jenkins/workspace/APP/node_modules/karma-junit-reporter/index.js:61:9)
14:37:48 [ERROR] at onBrowserComplete (/opt/home/jenkins/workspace/APP/node_modules/karma-junit-reporter/index.js:126:5)
14:37:48 [ERROR] at null. (/opt/home/jenkins/workspace/APP/node_modules/karma/lib/events.js:13:22)
14:37:48 [ERROR] at emitTwo (events.js:92:20)
14:37:48 [ERROR] at emit (events.js:172:7)
14:37:48 [ERROR] at onComplete (/opt/home/jenkins/workspace/APP/node_modules/karma/lib/browser.js:142:13)
14:37:48 [ERROR] at Socket. (/opt/home/jenkins/workspace/APP/node_modules/karma/lib/events.js:13:22)
14:37:48 [ERROR] at emitTwo (events.js:92:20)
14:37:48 [ERROR] at Socket.emit (events.js:172:7)
14:37:48 [ERROR] at Socket.onevent (/opt/home/jenkins/workspace/APP/node_modules/karma/node_modules/socket.io/lib/socket.js:335:8)
14:37:48 [ERROR] at Socket.onpacket (/opt/home/jenkins/workspace/APP/node_modules/karma/node_modules/socket.io/lib/socket.js:295:12)
14:37:48 [ERROR] at Client.ondecoded (/opt/home/jenkins/workspace/APP/node_modules/karma/node_modules/socket.io/lib/client.js:193:14)
14:37:48 [ERROR] at Decoder.Emitter.emit (/opt/home/jenkins/workspace/APP/node_modules/karma/node_modules/socket.io/node_modules/socket.io-parser/node_modules

configuration like:
junitReporter: {
outputDir: '../target/surefire-reports', // results will be saved as $outputDir/$browserName.xml
outputFile: undefined, // if included, results will be saved as $outputDir/$browserName/$outputFile
suite: '', // suite will become the package name attribute in xml testsuite element
useBrowserName: true, // add browser name to report and classes names
nameFormatter: undefined, // function (browser, result) to customize the name attribute in xml testcase element
classNameFormatter: undefined // function (browser, result) to customize the classname attribute in xml testcase element
},

writeXmlForBrowser should validate/handle outputFile before calling pathIsAbsolute.

[cloakedninjas]

Duplicates #87

[jpaulin]

@urbanq Since the issue #87 is now closed with modifications done to fix it, is this issue fixed too?
There is now a:

if outputFile && ...
[line 69; index.js]
clause in the code, that checks basically existence of the outputFile variable (coming from config to karma-junit-reporter)

[stramel]

karma-runner/karma#1292

[wesleycho]

Closing as a duplicate/resolved