Major Description
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.
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: ContentTypeList 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)
1. Simply run the Showcase using MyFaces 4.0
2. Execute `curl` or `PowerShell` to hit the site with an invalid Content-Type.
Unable to find source-code formatter for language: powershell. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
$response = Invoke-WebRequest -Uri "http://localhost:8080/showcase/ui/ajax/process.xhtml" -Method GET -Headers @{ Accept = "text/plain" } -AllowInsecureRedirect
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.