Randomly getting an empty <body> that gets cached #9050
Description
Preconditions
- Magento CE 2.1.5 without sample data is installed.
Steps to reproduce
I do not know.
I'm having problems with a very basic Magento 2 install, with very few customizations or extensions.
We randomly get a completely empty tag on the home page that then gets cached on Varnish and the site is not accessible. All the contents etc are just fine (except for an empty <title>).
Cleaning cache and banning Varnish fixes the issue but it's a huge issue.
I haven't found a way to replicate this as it seems to happened randomly.
If I load something like /?test that bypasses cache, the page loads correctly.
Expected result
Homepage showed
Actual result
Blank page