[TYPO3-mvc] call action via get-parameter does not work

[Christian Tauscher]

Hello!

I have impelemented a new action

Templates/<Controller>/TheNewAction.html

in class/<Controller>.php

I have added the needed method:

function theNewAction {
...
}

in ext_localconf.php I added all actions

        \TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
            'Prov.extentionkey,
            'thePlugin',
            [
                '<controller>' => 'list,search,theSearchresult,show'
            ])


in Template Search  ist this:
<f:form action="searchResult" pageUid="{settings.searchResult}"
name="newSearch" id="searchform" >
<f:form.textfield id="address" name="address" type="input"
required="TRUE" />
...



in flexform.xml I have added all the Controller->action possible and needed.

I'd like to overwrite the Action via get Parameter, this fails!

&tx_extention_pi1[action]=list
works.
&tx_extention_pi1[action]=show
works

&tx_extention_pi1[action]=search
works not.
&tx_extention_pi1[action]=searchResult
works not.

The Plugin is used only once.
The caches are all cleared.

It allways ends up here:
The action "searchResult" (controller "<controller>") is not allowed by
this plugin. Please check
TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin() in your
ext_localconf.php. (More information)


In some other EXT I wrote for T3 7.6 this get-parameter thing works
perfectly.


Do you know what change I forgott?

Thank you for your help!

Christian.