There appears to be a bug in the iCal download feature (possibly other calendar integration features are affected also).

One can view an event and download an ICS file successfully. However, any subsequent attempt to download an ICS file for another event in the same session results in an ICS file that contains the title, description etc of the current event but the date and time of the first event viewed.

Please see attached files:

icagenda.ics - downloaded from www.chelmsfordses.org.uk/events/128-marc...ion-at-sandford-mill
icagenda2.ics - downloaded from www.chelmsfordses.org.uk/events/131-esa-...tecting-planet-earth

Notice how icagenda2.ics (downloaded second) has the date and time of the first event (icagenda.ics) but correct title and description etc.

I have received a complaint from one of my users: please investigate as a matter of urgency.

Attachments blocked: attempting to upload as ZIP file.

Hi Cyril

Thank you for looking into this and for your quick response - much appreciated.

I would agree that this looks like a caching issue. I have reviewed the Joomla settings and all caching is disabled (as far as I can tell: the global cache setting is OFF and the cache plugin is disabled).

I have now been able to reproduce the error on three independent systems with unrelated network connections: MacOS + Safari, Win 7 + IE11, Win 10 + Chrome. All of these have default browser caching settings. I have tried clearing the browser cache but the issue persists.

Any thoughts?

Many thanks
Adam

Hi Cyril

Thank you for looking into this further, and sorry for the slow reply. A few updates:

1. On unrelated matters I am having to make some changes/updates to our site template. I will come back to you if the issue persists after this.
2. I have recently upgraded to Pro so will open a support ticket instead of continuing discussion here if the issue persists.
3. My user has reported that it may now be working for them and that it may have been browser-related.
4. I have recently updated the site to use HTTPS throughout which will no doubt have some impact on caching behaviour.

To answer your immediate question, the steps to reproduce were very simple for me:

1. Navigate to the first URL www.chelmsfordses.org.uk/events/128-marc...ion-at-sandford-mill
2. Choose "Add to calendar" > "iCal calendar"
3. Navigate to the second URL www.chelmsfordses.org.uk/events/131-esa-...tecting-planet-earth
4. Choose "Add to calendar" > "iCal calendar"
5. Review the ics files

And yes I was able to reproduce the issue on Chrome, Firefox and Edge on two independent internet connections.

Many thanks
Adam