Invalid Form Key. Please refresh the page while creating new users in Magento 2.3

Question

Whenever adding new users or editing, updating the products in frontend shows the error Invalid Form Key. Please refresh the page.

*I increased the value of input_max_var but still it showing the error often. Is I need to increase the values for max_input_time and max_execution_time too? Between the site is slow. Will the slow loading cause such issues? *

It also displaying the alert messages lately after saving the product or creating users.

What is the solution?

Kindly help me.

Answer 1

I solved this issue by adding reference container content in the layout.xml file.