Error in polls with multiple votes

[worldworm]

Hi there,
first of all: what a great plugin. I really love it! 🚀

Unfortunately I'm facing a problem when the max-vote limit is != 1.

Example polls I've created

Poll with unlimited votes

Poll with limited votes >1

When I press "vote", a pop-up window opens where the option I pressed "vote" is selected.

Pop-up window

Now, when I check an additional option, the dialogue box closes and I get the following error message:
"Dialogue box could not be loaded. Either the app is not responding or the response is invalid." (I translated it manually. Even though I've changed the language of my Google account, the error message is still in my native language)

In the network developer settings I can see a submit_form_action POST that returns with a 200 but with the above error message as a response:

[
    "dyni.submitformaction",
    null,
    [
        13,
        "Dialogfeld konnte nicht geladen werden. Entweder reagiert die App nicht oder die Antwort ist ungültig"
    ]
]

output.webm

Tested with Firefox, Chrome and Chromium

It would be awesome if you could help.
If you need any more information, please let me know.

Thank you very much! 😃

#8
#57
#67