I am unable to save the product in Magento 2.
It shows "Invalid Form Key. Please refresh the page. in local
how to resolve this?
This bug arises due to php.ini variable "max_input_vars" Increase it to 10000 through below php function:
OR Using linux command line
cd /etc/php/7.0/apache2/ vi php.ini (Open for edit and set max_input_vars=10000) :wq(Press esc and write the mentioned command to save and exit) sudo /etc/init.d/apache2 restart(Restart Server)
If you are running this Magento site on a local machine (local host) as your question seems to indicate, you may have trouble using the: http://localhost/ syntax, as Magento 2 doesn't fully know how to deal with cookie.
Instead, I'd recommend using http://127.0.0.1/ to access the local site; in this case your browser should be able to recognize this more easily and work with Magento's cookies properly.
You may need to set a cookie domain in the admin area of Magento.
I hope this helps...
Try This Ubuntu 14.0.4 System in magento 2.3-invalid Form key error.
I face invalid Form key error on frondend-side insertion, But crome browser only occured this error, Insertion correctly run in firefox browser.
I solved this error Following steps:-
Change your base URL from localhost to 127.0.0.1.
Using localhost as the domain in your base URL causes problems in Magento 2.
Magento's base URL configuration is located in the core_config_data table. The following values may need to be changed:
After changing the url, flush the cache (bin/magento cache:flush). You might also need to clear out your var directories.
I find this solution through this Like https://magento.stackexchange.com/a/122167/78151
This problem is occurred after adding more custom options and categories in the product so because php.ini file not allowed to add more custom options.
So, we need to change default settings of php.ini file.
If php version 7.1 then,
If php version 7.0 then,
If php version 7.2 then,
Uncomment this value and update this all value in php.ini,
max_input_vars = 200000 max_input_time = 600 max_execution_time = 3600
Then Restart Apache 2 web server, and check it.
sudo service apache2 restart
After endlessly trying all the suggested tweaks to php.ini and cleaning cache, my magento2 still wouldn't accept cookies from localhost even if I used the linux machine name instead, making it seem like a domain name. i finally resorted to using localho.st which is a domain name that resolves dns to your local ip address and this is what worked.