Example Play application showing Comet and Server Sent Events in Scala
Home Page: https://developer.lightbend.com/start/?group=play
License: Creative Commons Zero v1.0 Universal
I'm experimenting with Server Sent Events, and while the existing streamClock() example is nice, I've failed in adapting it to my purpose. I'd like:
Source[String, _] that I can push data into arbitrarily at a later date. Is that what Source.actorRef() is for?Publisher for which fanout is true (ie Sink.asPublisher(fanout = true)), so that multiple clients can all receive the resulting server-sent events.I hope those are reasonable things to want, and that server-sent events are a reasonable way to achieve it. You can imagine a site with a big red button, and another 'viewer' page which many people could view - when the button is pressed, all users should see that event relayed on the 'viewer' page, simultaneously.
Here's the kind of code I've been trying:
val (actorRef, publisher) =
Source.actorRef[String](1000, OverflowStrategy.dropHead).toMat(Sink.asPublisher(fanout = true))(Keep.both).run()
val sourceFromPublisher = Source.fromPublisher(publisher).log("actorPublisher")
def streamClock() = Action {
Ok.chunked(sourceFromPublisher via EventSource.flow).as(ContentTypes.EVENT_STREAM)
}
(see rtyley@77572a8#diff-0558d2a6b4820ecb3797f61ab919efb4 for this code in a compiling branch)
When I try this, I sometimes get success - everything works as intended, but more often than not, I get this error:
[error] a.s.Materializer - [actorPublisher] Upstream failed.
akka.stream.impl.ActorPublisher$NormalShutdownException: Cannot subscribe to shut-down Publisher
...the intermittent nature of the error suggests to me that there's some kind of race-condition going on, with the publisher often getting shut-down before it can be registered for use. What's the proper way to use this stuff?!
https://www.playframework.com/documentation/2.5.x/ScalaComet
cc @wsargent
1 ) download 2.6 or 2.7 version
2') $ rm -rf .ivy2/
2) $ sbt run
3)
[info] Loading settings for project play-scala-streaming-example-2-7-x-build from plugins.sbt ...
[info] Loading project definition from /Users/fire/Code/projects/UPMC/play-scala-streaming-example-2.7.x/project
[info] Updating ProjectRef(uri("file:/Users/fire/Code/projects/UPMC/play-scala-streaming-example-2.7.x/project/"), "play-scala-streaming-example-2-7-x-build")...
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: UNRESOLVED DEPENDENCIES ::
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn] :: com.typesafe.play#sbt-plugin;2.7.0: Resolution failed several times for dependency: com.typesafe.play#sbt-plugin;2.7.0 {compile=[default(compile)]}::
[warn] typesafe-ivy-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] sbt-plugin-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] :: org.scala-lang#scala-library;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-library;2.12.7 {scala-tool=[default, optional(default)], provided=[default(compile)]}::
[warn] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/jars/scala-library.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] :: org.scala-sbt#sbt;1.2.8: Resolution failed several times for dependency: org.scala-sbt#sbt;1.2.8 {provided=[default(compile)]}::
[warn] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] sbt-plugin-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/jars/sbt.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] :: org.scala-lang#scala-compiler;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-compiler;2.12.7 {scala-tool=[default, optional(default)]}::
[warn] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/jars/scala-compiler.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[warn] ::::::::::::::::::::::::::::::::::::::::::::::
[warn]
[warn] Note: Some unresolved dependencies have extra attributes. Check that these dependencies exist with the requested attributes.
[warn] com.typesafe.play:sbt-plugin:2.7.0 (scalaVersion=2.12, sbtVersion=1.0)
[warn]
[warn] Note: Unresolved dependencies path:
[warn] com.typesafe.play:sbt-plugin:2.7.0 (scalaVersion=2.12, sbtVersion=1.0) (/Users/fire/Code/projects/UPMC/play-scala-streaming-example-2.7.x/project/plugins.sbt#L2-3)
[warn] +- default:play-scala-streaming-example-2-7-x-build:0.1.0-SNAPSHOT (scalaVersion=2.12, sbtVersion=1.0)
[warn] org.scala-lang:scala-library:2.12.7 ((sbt.Classpaths.jvmBaseSettings) Defaults.scala#L2207)
[warn] +- default:play-scala-streaming-example-2-7-x-build:0.1.0-SNAPSHOT (scalaVersion=2.12, sbtVersion=1.0)
[warn] org.scala-sbt:sbt:1.2.8
[warn] +- default:play-scala-streaming-example-2-7-x-build:0.1.0-SNAPSHOT (scalaVersion=2.12, sbtVersion=1.0)
[warn] org.scala-lang:scala-compiler:2.12.7
[warn] +- default:play-scala-streaming-example-2-7-x-build:0.1.0-SNAPSHOT (scalaVersion=2.12, sbtVersion=1.0)
[error] sbt.librarymanagement.ResolveException: unresolved dependency: com.typesafe.play#sbt-plugin;2.7.0: Resolution failed several times for dependency: com.typesafe.play#sbt-plugin;2.7.0 {compile=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-lang#scala-library;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-library;2.12.7 {scala-tool=[default, optional(default)], provided=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/jars/scala-library.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-sbt#sbt;1.2.8: Resolution failed several times for dependency: org.scala-sbt#sbt;1.2.8 {provided=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/jars/sbt.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-lang#scala-compiler;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-compiler;2.12.7 {scala-tool=[default, optional(default)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/jars/scala-compiler.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] at sbt.internal.librarymanagement.IvyActions$.resolveAndRetrieve(IvyActions.scala:332)
[error] at sbt.internal.librarymanagement.IvyActions$.$anonfun$updateEither$1(IvyActions.scala:208)
[error] at sbt.internal.librarymanagement.IvyActions$$$Lambda$2030/971704050.apply(Unknown Source)
[error] at sbt.internal.librarymanagement.IvySbt$Module.$anonfun$withModule$1(Ivy.scala:239)
[error] at sbt.internal.librarymanagement.IvySbt$Module$$Lambda$2031/1952931548.apply(Unknown Source)
[error] at sbt.internal.librarymanagement.IvySbt.$anonfun$withIvy$1(Ivy.scala:204)
[error] at sbt.internal.librarymanagement.IvySbt$$Lambda$2032/887889512.apply(Unknown Source)
[error] at sbt.internal.librarymanagement.IvySbt.sbt$internal$librarymanagement$IvySbt$$action$1(Ivy.scala:70)
[error] at sbt.internal.librarymanagement.IvySbt$$anon$3.call(Ivy.scala:77)
[error] at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:95)
[error] at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:80)
[error] at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:99)
[error] at xsbt.boot.Using$.withResource(Using.scala:10)
[error] at xsbt.boot.Using$.apply(Using.scala:9)
[error] at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:60)
[error] at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:50)
[error] at xsbt.boot.Locks$.apply0(Locks.scala:31)
[error] at xsbt.boot.Locks$.apply(Locks.scala:28)
[error] at sbt.internal.librarymanagement.IvySbt.withDefaultLogger(Ivy.scala:77)
[error] at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:199)
[error] at sbt.internal.librarymanagement.IvySbt.withIvy(Ivy.scala:196)
[error] at sbt.internal.librarymanagement.IvySbt$Module.withModule(Ivy.scala:238)
[error] at sbt.internal.librarymanagement.IvyActions$.updateEither(IvyActions.scala:193)
[error] at sbt.librarymanagement.ivy.IvyDependencyResolution.update(IvyDependencyResolution.scala:20)
[error] at sbt.librarymanagement.DependencyResolution.update(DependencyResolution.scala:56)
[error] at sbt.internal.LibraryManagement$.resolve$1(LibraryManagement.scala:45)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$12(LibraryManagement.scala:93)
[error] at sbt.internal.LibraryManagement$$$Lambda$2026/541667089.apply(Unknown Source)
[error] at sbt.util.Tracked$.$anonfun$lastOutput$1(Tracked.scala:68)
[error] at sbt.util.Tracked$$$Lambda$1987/1502405597.apply(Unknown Source)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$19(LibraryManagement.scala:106)
[error] at sbt.internal.LibraryManagement$$$Lambda$2028/1974961563.apply(Unknown Source)
[error] at scala.util.control.Exception$Catch.apply(Exception.scala:224)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11(LibraryManagement.scala:106)
[error] at sbt.internal.LibraryManagement$.$anonfun$cachedUpdate$11$adapted(LibraryManagement.scala:89)
[error] at sbt.internal.LibraryManagement$$$Lambda$2025/1214075428.apply(Unknown Source)
[error] at sbt.util.Tracked$.$anonfun$inputChanged$1(Tracked.scala:149)
[error] at sbt.util.Tracked$$$Lambda$1936/330808162.apply(Unknown Source)
[error] at sbt.internal.LibraryManagement$.cachedUpdate(LibraryManagement.scala:120)
[error] at sbt.Classpaths$.$anonfun$updateTask$5(Defaults.scala:2561)
[error] at sbt.Classpaths$$$Lambda$1121/431097582.apply(Unknown Source)
[error] at scala.Function1.$anonfun$compose$1(Function1.scala:44)
[error] at scala.Function1$$Lambda$1010/2140617236.apply(Unknown Source)
[error] at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:40)
[error] at sbt.internal.util.$tilde$greater$$Lambda$1846/1955991197.apply(Unknown Source)
[error] at sbt.std.Transform$$anon$4.work(System.scala:67)
[error] at sbt.Execute.$anonfun$submit$2(Execute.scala:269)
[error] at sbt.Execute$$Lambda$1863/511581051.apply(Unknown Source)
[error] at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:16)
[error] at sbt.Execute.work(Execute.scala:278)
[error] at sbt.Execute.$anonfun$submit$1(Execute.scala:269)
[error] at sbt.Execute$$Lambda$1854/1133731484.apply(Unknown Source)
[error] at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] at sbt.ConcurrentRestrictions$$anon$4$$Lambda$1861/177267393.apply(Unknown Source)
[error] at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[error] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[error] at java.lang.Thread.run(Thread.java:745)
[error] (update) sbt.librarymanagement.ResolveException: unresolved dependency: com.typesafe.play#sbt-plugin;2.7.0: Resolution failed several times for dependency: com.typesafe.play#sbt-plugin;2.7.0 {compile=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.typesafe.com/typesafe/ivy-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for com.typesafe.play#sbt-plugin;2.7.0: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.typesafe.play/sbt-plugin/scala_2.12/sbt_1.0/2.7.0/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-lang#scala-library;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-library;2.12.7 {scala-tool=[default, optional(default)], provided=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-library/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-library;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-library/2.12.7/jars/scala-library.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-sbt#sbt;1.2.8: Resolution failed several times for dependency: org.scala-sbt#sbt;1.2.8 {provided=[default(compile)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-sbt/sbt/1.2.8/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-sbt#sbt;1.2.8: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.2.8/jars/sbt.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error]
[error] unresolved dependency: org.scala-lang#scala-compiler;2.12.7: Resolution failed several times for dependency: org.scala-lang#scala-compiler;2.12.7 {scala-tool=[default, optional(default)]}::
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] sbt-plugin-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.scala-lang/scala-compiler/2.12.7/ivys/ivy.xml: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[error] typesafe-ivy-releases: unable to get resource for org.scala-lang#scala-compiler;2.12.7: res=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-lang/scala-compiler/2.12.7/jars/scala-compiler.jar: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? q
Since 2.6.x the Security Headers filter is enabled automatically. Some default values set to those security headers prevent this example from working in any browser:
play.filters.headers.frameOptions - sets X-Frame-Options to “DENY” by default. However, scalacomet.scala.html includes an <iframe />. Obviously browsers block that:Refused to display 'http://localhost:9000/scala/comet/liveClock?-3483617522062089725' in a frame because it set 'X-Frame-Options' to 'deny'.
play.filters.headers.contentSecurityPolicy - sets Content-Security-Policy to “default-src ‘self’” by default. However, there are some inlined scripts executing in a few places.jquery-1.7.1.min.js:2 Refused to apply inline style because it violates the following Content Security Policy directive: "default-src 'self'". Either the 'unsafe-inline' keyword, a hash ('sha256-p4cncjf0hAIeTSS5tXecf7qTUanDC27KdlKhT9eOsZU='), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'style-src' was not explicitly set, so 'default-src' is used as a fallback.
jquery-1.7.1.min.js:2 Refused to apply inline style because it violates the following Content Security Policy directive: "default-src 'self'". Either the 'unsafe-inline' keyword, a hash ('sha256-j6Tt8qv7z2kSc7fUs0YHbrxawwsQcS05fVaX1r2qrbk='), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'style-src' was not explicitly set, so 'default-src' is used as a fallback.
2jquery-1.7.1.min.js:2 Refused to apply inline style because it violates the following Content Security Policy directive: "default-src 'self'". Either the 'unsafe-inline' keyword, a hash ('sha256-4k7ctMEOr0TFHgEsUvTVaR3fsvmZ3jMWlvYe1fVV73k='), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'style-src' was not explicitly set, so 'default-src' is used as a fallback.
3comet/liveClock?4556151462785380287:1 Refused to execute inline script because it violates the following Content Security Policy directive: "default-src 'self'". Either the 'unsafe-inline' keyword, a hash ('sha256-0+LnLflQCXJoY5zi1zhsk2gWs/h0Z4YQlNEjHS4NxNo='), or a nonce ('nonce-...') is required to enable inline execution. Note also that 'script-src' was not explicitly set, so 'default-src' is used as a fallback.
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