Module::process_content_blocks()
Method: Wrapper to add additional filter for block processing Reported and suggested here: https://github.com/WordPress/gutenberg/issues/17358 Based on https://github.com/WordPress/WordPress/blob/965fcddcf68cf4fd122ae24b992e242dfea1d773/wp-includes/blocks.php#L755
Source: includes/modules/performance/module.php:388