Twenty Nineteen: Sanitize output of custom colors CSS #8101
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Trac ticket: 62787
This PR adds proper sanitization to the custom colors CSS output in the Twenty Nineteen theme. The twentynineteen_custom_colors_css() function's output is filterable and currently outputs unsanitized content in two locations:
The PR wraps both outputs with wp_strip_all_tags() to ensure only CSS is included, preventing potential injection of unwanted HTML through filters.