And when you disable CRSF : no issue ? Response is saved ?

With 2 tab on same browser with LimeSurvey, ok can understand, but the biggest issue is « If you click on the link received by invitation, IE will open and when you start to fill out the questionnaire, you will get the error message.»

:/

Maybe related bug : https://github.com/panique/huge/issues/733
Solution is adding / on the CRSF cookie ????

Can you test with
'request' => array(
'csrfCookie' => array(
'path' => '/', // or '/subdir/' if you are on a subdir
)
),

OR
'path' => './' // ??? really strange fix …

Take a closer look at https://bugs.limesurvey.org/view.php?id=12083 towards the end of the ticket (https://bugs.limesurvey.org/view.php?id=12083#c42886).
Maybe this will point you in the right direction. Very complex.. I cracked it for the problem I had

@asshank we try to set session.name to Dev (thanks to your bug report and way to fix) (using Yii), but here : the 2 tab on the same LimeSurvey instance …

@riqcles and @asshank : can you test with https://gitlab.com/SondagesPro/coreAndTools/sessionNameBySurvey

If it work : i make a pull request for master.

Remind the part with : 'autoStart' => false,
'session' => array (
'autoStart' => false,
'sessionName' => "LimeSurvey",
),

And if it don't work : try to disable ajax in the survey template option :)

See this issue with Yii2 and pjax : https://www.yiiframework.com/forum/index.php/topic/69079-pjax-with-ie11-and-edge/

https://www.yiiframework.com/forum/index.php/topic/69079-pjax-with-ie11-and-edge/

Quote: no error whatever

Ajax is by default ON in vanilla. Shouldn't that be turned off by default in a starter theme?

@tammo : you do the test : deactivate ajax mode fix the issue with IE11 ?
( i have to setup my VirtualBox instance with IE11, but if you already do the test : great :) )

Really hard to reproduce , i test with https://developer.microsoft.com/en-us/microsoft-edge/tools/vms/ msedge Win10 virtual box.

Launch, goes to master.sondages.pro home page. Try with copy/paste link , try 2 different survey at same time etc … not able to have the issue …

I have the https://bugs.limesurvey.org/view.php?id=13761#c48113 fix inside my instance, maybe…

Yes, I turned off Ajax in my (child of Vanilla) custom theme.

In Edge the survey now loads OK.

I really think that Ajax is an advanced featured that should be turned off by default and turned on by deliberate action only.

the issue must be fixed
turning off the feature is not a way to fix it.

https://www.limesurvey.org/forum/installation-a-update-issues/115573-survey-loops-round-to-start-without-confirming-completion

https://www.limesurvey.org/forum/installation-a-update-issues/115575-commit-0f710b3-breaks-mantarory-questions-that-are-only-shown-via-em

@Denis .
I tried but the plugins do not want to work, I'm looking for why.

« turning off the feature is not a way to fix it. » since this “feature” broke a lot of another feature … maybe it's not a feature …

Currently : if an user have 3.X with production survey : it's better if this “feature” is disabled

And : sometimes : some dev remove working feature … without any reason …

ok sessionNameBySurvey-master , must remove "-master" and i have the plugin.

I try but still ko

@tammo : can you try on IE11 (find on programm : iexplore) ?