Can not edit Javascript in GSP file

I am no longer able to press tab or return in the head section of a GSP file that contains an asset:javascript tag. I get the following error in the log:

Language: JavaScript;
Host file: Groovy Server Pages file in '/Users/<hidden-personal-data>/Repositories/live-visualisations/grails-app/views/browse/search/show.gsp'
Context element (23,156): 'HtmlTag:head'; Ranges: [Shred (29,34): XmlText In host range: (29,34); PSI range: (0,5), Shred (71,76): XmlText In host range: (71,76); PSI range: (5,10), Shred (107,149): XmlText In host range: (107,148); PSI range: (10,22)]
java.lang.AssertionError: After patch: doc:
'

<asset:script>

</asset:script>'
—PSI:
'

<asset:script>

</asset:script'
—chars:
'

'.
Language: JavaScript;
Host file: Groovy Server Pages file in '/Users/<hidden-personal-data>/Repositories/live-visualisations/grails-app/views/browse/search/show.gsp'
Context element (23,156): 'HtmlTag:head'; Ranges: [Shred (29,34): XmlText In host range: (29,34); PSI range: (0,5), Shred (71,76): XmlText In host range: (71,76); PSI range: (5,10), Shred (107,149): XmlText In host range: (107,148); PSI range: (10,22)]

**at** com.intellij.psi.impl.source.tree.injected.MultiHostRegistrarImpl.doneInjecting(MultiHostRegistrarImpl.java:256)

```
at org.intellij.plugins.intelliLang.inject.InjectorUtils.registerInjection(InjectorUtils.java:135)
at org.intellij.plugins.intelliLang.inject.xml.XmlLanguageInjector.lambda$getLanguagesToInject$0(XmlLanguageInjector.java:91)
at org.intellij.plugins.intelliLang.inject.xml.XmlLanguageInjector.getInjectedLanguage(XmlLanguageInjector.java:144)
at org.intellij.plugins.intelliLang.inject.xml.XmlLanguageInjector.getLanguagesToInject(XmlLanguageInjector.java:81)
at com.intellij.psi.impl.source.tree.injected.InjectedPsiCachedValueProvider$MyInjProcessor.process(InjectedPsiCachedValueProvider.java:82)
at com.intellij.psi.impl.source.tree.injected.InjectedLanguageManagerImpl.processInPlaceInjectorsFor(InjectedLanguageManagerImpl.java:458)
at com.intellij.psi.impl.source.tree.injected.InjectedPsiCachedValueProvider.doCompute(InjectedPsiCachedValueProvider.java:62)
at com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil.probeElementsUp(InjectedLanguageUtil.java:313)
at com.intellij.psi.impl.source.tree.injected.InjectedLanguageUtil.enumerate(InjectedLanguageUtil.java:145)
at com.intellij.codeInsight.daemon.impl.LineMarkersPass.a(LineMarkersPass.java:238)
at com.intellij.codeInsight.daemon.impl.LineMarkersPass.a(LineMarkersPass.java:200)
at com.intellij.codeInsight.daemon.impl.LineMarkersPass.a(LineMarkersPass.java:111)
at com.intellij.codeInsight.daemon.impl.Divider.divideInsideAndOutsideInOneRoot(Divider.java:96)
at com.intellij.codeInsight.daemon.impl.LineMarkersPass.doCollectInformation(LineMarkersPass.java:106)
at com.intellij.codeHighlighting.TextEditorHighlightingPass.collectInformation(TextEditorHighlightingPass.java:70)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.c(PassExecutorService.java:433)
at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1061)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.b(PassExecutorService.java:426)
at com.intellij.openapi.progress.impl.CoreProgressManager.a(CoreProgressManager.java:568)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:519)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:54)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.a(PassExecutorService.java:425)
at com.intellij.codeInsight.daemon.impl.PassExecutorService$ScheduledPass.run(PassExecutorService.java:405)
at com.intellij.concurrency.JobLauncherImpl$VoidForkJoinTask$1.exec(JobLauncherImpl.java:155)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
```

I will attach the source file causing the problem. I have tried removing the cache, and also uninstalling all custom plugins.

---

*Imported from [IDEA-174232](https://youtrack.jetbrains.com/issue/IDEA-174232) · Type: Bug · Votes: 2*
*Comments, attachments, dates and reporter are not part of the export — follow the link above for the full history.*

Reproduce the failure in grails-app/views/browse/search/show.gsp by placing an asset:javascript tag in the head and pressing Tab or Return. Start with the IntelliJ injected-language path shown in the stack trace, especially XmlLanguageInjector and MultiHostRegistrarImpl.doneInjecting. Done means editing the GSP no longer triggers the AssertionError.

Written by the indexing model from the issue text.