maxDate workaround does not work for limiting future bookings

[Blagoja]

I use maxDate: "+1m", 

in frontend_book.js and frontent_book_min.js to limit the maximum date client is allow to book. For example if today is 1 February, he can only book up to 1 March,  but it simply does not work. 

I tried clearing cache in my browsers on my end and with 3-4 different devices it still shows the dates after 1 month available, is there a cure for this? 

Client is running 1.4.1 and I dont want to update since I havent made his install and I dont know what things he has changed so far... 

I also tried alternatives like "+30d" or "1w" just to test and changed "1w" with '1w' but still no luck I dont know what the issue is... Anyone can help?

[The Bat]

there are many places that you have to edit in the code

[Blagoja]

Could you point them to me if you have experience? I am really struggling with this and I see my only option is to update to 1.5.1 however I am concerned it will corrupt the website since they have lots of custom stuff and translations.. 

[Temi B]

you can compare the clients files to the default files to find changes and see if upgrading would be feasible. Might be the less stressful path