Identifies code that tries to parse `content_for_header`.

You shouldn't rely on the content of `content_for_header` as it might change in the future, which could cause your Liquid code behavior to change.

## Examples

The following examples contain code snippets that either fail or pass this check.

### ✗ Fail

The following code extracts content from `content_for_header`:

```liquid

{% assign parts = content_for_header | split: ',' %}

```

### ✓ Pass

Below is the only acceptable usage of `content_for_header`:

```liquid

{{ content_for_header }}

```

## Disabling this check

Disabling this check isn't recommended.