Request body does not contain required parameter 'capabilities'.

[starcwl]

Meta -

OS: 10.13.4 OSX

Selenium Version: 3.6

Browser: safari

I want to use safari technology preview instead of safari

Browser Version: STP 58

Expected Behavior -

Actual Behavior -

SessionNotCreatedError: Request body does not contain required parameter 'capabilities'.
at Object.throwDecodedError (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/lib/error.js:514:15)
at parseHttpResponse (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/lib/http.js:519:13)
at doSend.then.response (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/lib/http.js:441:30)
at
at process._tickCallback (internal/process/next_tick.js:188:7)
From: Task: WebDriver.createSession()
at Function.createSession (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/lib/webdriver.js:769:24)
at Function.createSession (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/safari.js:253:41)
at createDriver (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/index.js:170:33)
at Builder.build (/Users/starcwl/Documents/Project/ZiJing/Web/automation/node_modules/selenium-webdriver/index.js:660:16)
at Object. (/Users/starcwl/Documents/Project/ZiJing/Web/automation/test.js:6:54)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)

Steps to reproduce -

let wd = require('selenium-webdriver');
let safari = require('selenium-webdriver/safari');
let opts = new safari.Options();
opts.setTechnologyPreview(true);
let caps = opts.toCapabilities();
let driver = new wd.Builder().withCapabilities(caps).build(); 

so how could I contain capabilities in request body?

[tonyaveniros]

I just upgraded to Safari 12 and now all my Selenium / WebDriver tests are failing with the error.
SessionNotCreatedError: Request body does not contain required parameter 'capabilities'.

Which is peculiar because I have defined capabilities.

High Sierra 10.13.6 (17G65) with Safari Version 12.0 (13606.2.11)

[mjdease]

This issue happens because Safari 12 uses a new (W3C) webdriver protocol which appears incompatible with selenium-webdriver v3.6

safaridriver can be passed a --legacy flag to use the old protocol.

I got this working in my project with the following:

const webdriver = require('selenium-webdriver');
const safari = require('selenium-webdriver/safari');

new webdriver.Builder()
    .usingServer(await new safari.ServiceBuilder().addArguments('--legacy').build().start())
    .forBrowser('safari')
    .build();

More details in #6431

Edit: pinging @jleyba FYI it appears the latest stable version of the node package doesn't work by default with Safari 12 which is now generally available.

[tonyaveniros]

For me, it was choking on the 'await', but this works:

new webdriver.Builder()
    .usingServer( new safari.ServiceBuilder().addArguments('--legacy').build().start())
    .forBrowser('safari')
    .build();

using node v8.12.0

[Alvassp]

Hello, could you please help me, I have the same problem, when perform tests (selenium/c#/Safari 12).
I've catch:
Request body does not contain required parameter 'handle'

Current window:page-6CF4B0C0-1AD6-43A0-8E64-2F9EC720E260 New window:page-6CF4B0C0-1AD6-43A0-8E64-2F9EC720E260 error:
Request body does not contain required parameter 'handle'.
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:13:22.693Z'
System info: host: 'itako39021.prod.miso', ip: 'fe80:0:0:0:1093:5dbf:b722:61c9%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.6', java.version: '9.0.4'
Driver info: driver.version: unknownRequest body does not contain required parameter 'handle'.
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:13:22.693Z'
System info: host: 'itako39021.prod.miso', ip: 'fe80:0:0:0:1093:5dbf:b722:61c9%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.6', java.version: '9.0.4'
Driver info: driver.version: unknownOpenQA.Selenium.WebDriverException:
Request body does not contain required parameter 'handle'.
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:13:22.693Z' System info: host: 'itako39021.prod.miso', ip: 'fe80:0:0:0:1093:5dbf:b722:61c9%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.6', java.version: '9.0.4' Driver info: driver.version: unknown at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse) at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters) at OpenQA.Selenium.Remote.RemoteTargetLocator.Window(String windowHandleOrName) at ServiceChannel.Specflow.Support.PageObjectBase.SwitchTab() in D:\Work\Project1\ServiceClick\ServiceChannel.Specflow\Support\PageObjectBase.cs:line 168 at ServiceChannel.Specflow.ServiceClick.Steps.ClickOnAllMenuItemsSteps.WhenTheUserSwitches(String type) in D:\Work\Project1\ServiceClick\ServiceChannel.Specflow\ServiceClick\Platform\Steps\ClickOnAllMenuItemsSteps.cs:line 73 at lambda_method(Closure , IContextManager , String ) at TechTalk.SpecFlow.Bindings.BindingInvoker.InvokeBinding(IBinding binding, IContextManager contextManager, Object[] arguments, ITestTracer testTracer, TimeSpan& duration) at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.ExecuteStepMatch(BindingMatch match, Object[] arguments) at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.ExecuteStep(StepInstance stepInstance) at TechTalk.SpecFlow.Infrastructure.TestExecutionEngine.OnAfterLastStep() at TechTalk.SpecFlow.TestRunner.CollectScenarioErrors() at ServiceChannel.Specflow.ServiceClick.Proposals.Features.CreateProposalFeature.ScenarioCleanup() at ServiceChannel.Specflow.ServiceClick.Proposals.Features.CreateProposalFeature.CreateProposalByProvider() in D:\Work\Project1\ServiceClick\ServiceChannel.Specflow\ServiceClick\Proposals\Features\CreateProposal.feature:line 102 at TechTalk.SpecRun.Framework.TaskExecutors.StaticOrInstanceMethodExecutor.ExecuteInternal(ITestThreadExecutionContext testThreadExecutionContext) at TechTalk.SpecRun.Framework.TaskExecutors.StaticOrInstanceMethodExecutor.Execute(ITestThreadExecutionContext testThreadExecutionContext) at TechTalk.SpecRun.Framework.TestAssemblyExecutor.ExecuteTestNodeTask(TestNode testNode, ITaskExecutor task, TraceEventType eventType)

[AlexSdet]

Issue still happening for me when using '--legacy' flag

OS: OSX High Sierra
Safari: 12.0.3
Ruby: 2.3.3
Selenium: 3.4.0
Using 'Capybara' framework with selenium webdriver.

Add argument like suggested above:

But still seeing an issue:
Request body does not contain required parameter 'capabilities'.
/Users/username/.rbenv/versions/2.3.3/lib/ruby/gems/2.3.0/gems/selenium-webdriver-3.4.0/lib/selenium/webdriver/remote/response.rb:69

Any ideas what im doing wrong ?

Thanks

[cgoldberg]

Any ideas what im doing wrong ?

update selenium-webdriver to the latest version. 3.4.0 is almost 2 years old and you will need a newer version that uses the (W3C) webdriver protocol.

[philipwalton]

Looks like the fix suggested here is no longer working in Safari 12.1: #6431 (comment)

[shs96c]

The only reason the SeleniumJS 4 bindings are not marked as production ready is because we've yet to release Selenium 4 itself. We'll update the name of the bindings and push them to npm soon.