javascript - Firefox with Protractor - testForAngular: Document was unloaded during execution -

1. firefox version: 54.0.1 (32-bit)
2. protractor version: 5.1.2

when trying run protractor tests firefox, i'm getting following error:

failed: error while running testforangular: document unloaded during execution build info: version: '3.5.0', revision: '8def36e068', time: '2017-08-10t23:00:22.093z' system info: host: 'desktop-9avdli7', ip: '192.168.2.100', os.name: 'windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_131' driver info: driver.version: unknown error: error while running testforangular: document unloaded during execution build info: version: '3.5.0', revision: '8def36e068', time: '2017-08-10t23:00:22.093z' system info: host: 'desktop-9avdli7', ip: '192.168.2.100', os.name: 'windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_131' driver info: driver.version: unknown     @ executeasyncscript_.then (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\lib\browser.ts:945:27)     @ managedpromise.invokecallback_ (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:1366:14)     @ taskqueue.execute_ (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2970:14)     @ taskqueue.executenext_ (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2953:27)     @ asyncrun (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2813:27)     @ c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:676:7     @ process._tickcallback (internal/process/next_tick.js:109:7) from: task: run it("should select hindi option") in control flow     @ object.<anonymous> (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasminewd2\index.js:94:19)     @ attemptasync (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3945:24)     @ queuerunner.run (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3884:9)     @ queuerunner.execute (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3872:10)     @ spec.queuerunnerfactory (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:816:35)     @ spec.execute (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:473:10)     @ object.fn (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:4975:37)     @ attemptasync (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3945:24)     @ queuerunner.run (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3884:9)     @ queuerunner.execute (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:3872:10) asynchronous test:  error     @ suite.<anonymous> (c:\users\lenovo g50-70\ideaprojects\com.protractortest.myapp\tests\languageselectionpopup\hindiselection.js:6:5)     @ addspecstosuite (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:994:25)     @ env.describe (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:961:7)     @ describe (c:\users\lenovo g50-70\appdata\roaming\npm\node_modules\protractor\node_modules\jasmine-core\lib\jasmine-core\jasmine.js:4031:18)     @ object.<anonymous> (c:\users\lenovo g50-70\ideaprojects\com.protractortest.myapp\tests\languageselectionpopup\hindiselection.js:1:1)     @ module._compile (module.js:570:32)     @ object.module._extensions..js (module.js:579:10)     @ module.load (module.js:487:32)     @ trymoduleload (module.js:446:12) 

my conf.js file below

exports.config = {     framework: 'jasmine',     seleniumaddress: 'http://localhost:4444/wd/hub',     suites:{         languageselectionpopup: 'tests/languageselectionpopup/*.js'     },     restartbrowserbetweentests: true,     capabilities: {         browsername: 'firefox'     } }; 

and test spec.js below:

describe('testing viu', function() {     beforeall(function (){         browser.get('https://viu.com');     });      it('should select hindi option', function () {         element(by.xpath('//*[@id="ngdialog1"]/div/div[1]/div/div[1]')).click();         element(by.css('[ng-click="saveselection()"]')).click();         expect(browser.getcurrenturl()).tocontain('in-hindi');     }); }); 

project structure:

firefox launches , quits when executing tests , results in above mentioned error. after digging through stackoverflow came across comment protractor not support firefox above 47 version. cause? or i'm doing wrong in code?