Magento 1.9 – Fixing Login Issues with Full Page Cache

Challenge

Your biggest hurdle here is that your static block does not hole punch by default, but widgets will hole-punch automatically. So your goal should be to output all 3 widget rotators without the use of a static block.

So, then, my suggestion is that you get rid of the static block approach and instead create block reference areas to target with your widget. Classy Llama has a list of default regions available on their blog, referenced here:

Breadcrumbs

Left Column

Main Content Area

My Cart Extra Actions

Navigation Bar

Page Bottom

Page Footer

Page Header

Page Top

Right Column

Store Language

How to do it:

Creating a block reference is easy:

Define the block in layout XML:

<default>
    <reference name="content">
        <block type="core/text_list" name="some_block_name" as="some.block.name" translate="label">
            <label>Widget Rotator Target Region</label>
        </block>
    </reference>
</default>

And then you'll need to echo it from your template to force it and all dynamically inserted widget blocks to render:

#file: 1column.html
<?php echo $this->getChildHtml('some_block_name'); ?>

Then, it should show up in your widget list:

This should output in your template now when FPC is enabled wrapped in hole punch comments.

Cheers!

Image and bullet content sourced from:

http://www.classyllama.com/blog/widgets-magento-enteprise

Use Session factory instead.

public function __construct(
       \Magento\Customer\Model\SessionFactory $sessionFactory)
        {
           $this->sessionFactory = $sessionFactory;
        }

Now you can use customer session with FPC enabled.

$customerSession = $this->sessionFactory->create();

if ($customerSession->isLoggedIn()) {
    // customer is logged in;
}