sr_freecap: viewhelper calls eIDSR instead of eID - no image shown

Question

i want to imeplement the extension sr_freecap in an own extension in a TYPO3 9 LTS. The viewhelper shows the text and the correct html but the link to the image looks like this:

mydomain.com/index.php?eIDSR=sr_freecap_EidDispatcher&id=9781&vendorName=SJBR&extensionName=SrFreecap&pluginName=ImageGenerator&controllerName=ImageGenerator&actionName=show&formatName=png&L=0&set=571e0

When i call this url manually i get the whole page and not the image. Is eIDSR correct? I was in the opinion that the correct call should be eID= ... I can't find information about it.

Any help appreciated!

Answer 1

I missed the existing bug report: https://forge.typo3.org/issues/89735

I tried the above solution and it works:

Put in your extension in which you implements sr_freecap this file:

/your-extension/Configuration/RequestMiddlewares.php

with the following content:

<?php
return [
    'frontend' => [
        'srfreecap-eidhandler' => [
            'target' => \SJBR\SrFreecap\Middleware\EidHandler::class,
            'before' => [
                'typo3/cms-frontend/content-length-headers',
            ],
        ]
    ]
];

this will work. Seems like a necaissary feature which is not mentioned in the manual.