Mahara

Behat won't run headless on Ubuntu 20.04+

Bug #1981942 reported by Gold on 2022-07-17

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Mahara	Confirmed	Undecided	Unassigned

Bug Description

When pausing execution of the behat script at the point the curl request is being made to fetch the selenium session I get the following:

Message:
Expected to read a START_MAP but instead have: END. Last 0 characters read:
Build info: version: '4.3.0', revision: 'a4995e2c09*'
System info: host: 'ca57762ce390', ip: '172.18.0.3', os.name: 'Linux', os.arch: 'amd64', os.version: '5.13.0-52-generic', java.version: '11.0.15'
Driver info: driver.version: unknown

Stacktrace:
org.openqa.selenium.json.JsonException: Expected to read a START_MAP but instead have: END. Last 0 characters read:
Build info: version: '4.3.0', revision: 'a4995e2c09*'
System info: host: 'ca57762ce390', ip: '172.18.0.3', os.name: 'Linux', os.arch: 'amd64', os.version: '5.13.0-52-generic', java.version: '11.0.15'
Driver info: driver.version: unknown
    at org.openqa.selenium.json.JsonInput.expect(JsonInput.java:307)
    at org.openqa.selenium.json.JsonInput.beginObject(JsonInput.java:229)
    at org.openqa.selenium.remote.NewSessionPayload.getOss(NewSessionPayload.java:306)
    at org.openqa.selenium.remote.NewSessionPayload.\u003cinit>(NewSessionPayload.java:84)
    at org.openqa.selenium.remote.NewSessionPayload.create(NewSessionPayload.java:118)
    at org.openqa.selenium.grid.data.SessionRequest.\u003cinit>(SessionRequest.java:65)
    at org.openqa.selenium.grid.sessionqueue.NewSessionQueue.lambda$new$0(NewSessionQueue.java:66)
    at org.openqa.selenium.remote.http.Route$TemplatizedRoute.handle(Route.java:192)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.grid.sessionqueue.NewSessionQueue.execute(NewSessionQueue.java:120)
    at org.openqa.selenium.remote.tracing.SpanWrappedHttpHandler.execute(SpanWrappedHttpHandler.java:86)
    at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
    at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.grid.router.Router.execute(Router.java:91)
    at org.openqa.selenium.grid.web.EnsureSpecCompliantResponseHeaders.lambda$apply$0(EnsureSpecCompliantResponseHeaders.java:34)
    at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
    at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.remote.http.Route$NestedRoute.handle(Route.java:270)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.remote.http.Route$CombinedRoute.handle(Route.java:336)
    at org.openqa.selenium.remote.http.Route.execute(Route.java:68)
    at org.openqa.selenium.remote.AddWebDriverSpecHeaders.lambda$apply$0(AddWebDriverSpecHeaders.java:35)
    at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
    at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
    at org.openqa.selenium.remote.ErrorFilter.lambda$apply$0(ErrorFilter.java:44)
    at org.openqa.selenium.remote.http.Filter$1.execute(Filter.java:64)
    at org.openqa.selenium.netty.server.SeleniumHandler.lambda$channelRead0$0(SeleniumHandler.java:44)
    at java.base\u002fjava.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base\u002fjava.util.concurrent.FutureTask.run(FutureTask.java:264)
    at java.base\u002fjava.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base\u002fjava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base\u002fjava.lang.Thread.run(Thread.java:829)

These errors occur with the current state of invoking selenium as well as when trying to use either of the following:
docker run -d -p 4444:4444 -v /dev/shm:/dev/shm selenium/standalone-chrome
docker run -d -p 4444:4444 -v /dev/shm:/dev/shm selenium/standalone-firefox

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