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https://issues.apache.org/jira/browse/MYFACES-4703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17936842#comment-17936842
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Melloware commented on MYFACES-4703:
------------------------------------
Sounds good to me.
> Infinite Redirect Loop if invalid Accept header
> -----------------------------------------------
>
> Key: MYFACES-4703
> URL: https://issues.apache.org/jira/browse/MYFACES-4703
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 4.0.2, 4.1.0
> Reporter: Melloware
> Assignee: Melloware
> Priority: Major
> Fix For: 5.0.0, 4.0.3, 4.1.1
>
>
> Original PrimeFaces Issue:
> [https://github.com/primefaces/primefaces/issues/13104]
> IF you hit a MyFaces app using PrimeFaces and the Content-Type is invalid it
> gets in an infinite redirect loop if you have an `error-page` mapped.
> {noformat}
> Dec 21, 2024 10:09:19 AM
> org.primefaces.application.exceptionhandler.PrimeExceptionHandler logException
> SEVERE: ContentTypeList does not contain a supported content type: text/plain
> java.lang.IllegalArgumentException: fontentTypeList does not contain a
> supported content type: text/plain
> at
> org.apache.myfaces.renderkit.html.HtmlRenderKitImpl.createResponseWriter(HtmlRenderKitImpl.java:311)
> at
> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.createResponseWriter(FaceletViewDeclarationLanguage.java:2116)
> at
> org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1751)
> at
> org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:316)
> at
> jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:74)
> at
> jakarta.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:74)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:122)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241)
> at
> jakarta.faces.lifecycle.LifecycleWrapper.render(LifecycleWrapper.java:43)
> at jakarta.faces.webapp.FacesServlet.service(FacesServlet.java:225)
> {noformat}
> 1. Simply run the Showcase using MyFaces 4.0
> 2. Execute `curl` or `PowerShell` to hit the site with an invalid
> Content-Type.
> {code:bash}
> $response = Invoke-WebRequest -Uri
> "http://localhost:8080/showcase/ui/ajax/process.xhtml"; -Method GET -Headers
> @{ Accept = "text/plain" } -AllowInsecureRedirect
> {code}
> 3. Because it gets the error it tries to redirect to `/showcase/error.xhtml`
> using `externalContext.redirect(url);`. This however just generates the same
> error in MyFaces in an infinite loop.
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