TYPO3 Core

Hi all,
I can confirm this Bug both in 8.7.11 and 8.7.12.
#84264 did not really help.

With me, it occured with the extension "revslider" by Manfred Rutschmann.

Reason is that the iFrame #typo3-contentIframe in typo3\sysext\backend\Resources\Private\Templates\Backend\Main.html (line 17) has added a

 scrolling="no" 

• before 8.7.11:

<iframe name="list_frame" id="typo3-contentIframe" class="scaffold-content-module-iframe t3js-scaffold-content-module-iframe"></iframe>

• since 8.7.11:

<iframe name="list_frame" id="typo3-contentIframe" scrolling="no" class="scaffold-content-module-iframe t3js-scaffold-content-module-iframe"></iframe>

If you restore it to the old version (or replace "no" with "yes"), everythings runs fine & nice.
I could not find any implication on the general behavour so far.

I did a contribution under [[https://review.typo3.org/#/c/56439/]] and now wait for further information.

Best regards
Uwe

i just added

.tx-myextension {
height:100%;
overflow-y: scroll;
}

and scrolling is working again in all Browsers.

It works, when the extension author uses the fluid <f:be.container> to render the output.