Magento 2 customer custom attributes

Question

I followed this tutorial to have customer custom attributes :

http://www.extensions.sashas.org/blog/magento-2-1-3-how-to-make-customer-attribute-update.html

which was working fine since I updated from Magento 2.1.7 to 2.1.9.

The form is not working anymore.

The page reloads, but nothing happens, no error or success message and customer is not being registered.

When I delete app/design/frontend/{theme_company}/{theme_name}/Magento_Customer/templates/form/register.phtml, the registration works fine.

I also checked the new vendor/magento/module-customer/view/frontend/templates/form/register.phtml file, and saw no change in latest version.

The problem does not seem to come from

app/design/frontend/{theme_company}/{theme_name}/Magento_Customer/templates/form/register.phtml

If I only copy

vendor/magento/module-customer/view/frontend/templates/form/register.phtml

to

app/design/frontend/{theme_company}/{theme_name}/Magento_Customer/templates/form/register.phtml

without making any changes, I have the same problem.

Looks like the file does not « connect » with files located in app/code/Sashas/CustomerAttribute/ anymore .. ?

I tried to setup:upgrade and setup:di:compile after Magento update, but no change.

I can't seem to find any changes made in customer registration files in versions 2.1.8 or 2.1.9.

Answer 1

It seems that after the update to 2.1.9, the custom register.phtml file was missing the form key.

I added

<?php /* @noEscape */ echo $block->getBlockHtml('formkey'); ?>

just after the tag, and it's working fine.

Same change has to be made on the custom edit.phtml.