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The “unexpected or invalid content” error is a diff, not corruption
The scariest error in the block editor is just two versions of your markup disagreeing: the one in the database and the…
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WordPress 7.1 and theme.json’s growing source of truth
Two ordinary things always ejected me from theme.json into a stylesheet: a hover color and a mobile padding. WordPress 7.1 pulls both…
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WordPress’s Icon block ships 88 icons and no way to add yours (until 7.1)
Core’s Icon block has exactly 88 icons and a registry you can’t touch: a protected method, a manifest with no filter. I…
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The block editor doesn’t match your front end, and it’s not your stylesheet
Your theme’s CSS is loaded in the editor canvas and the editor still renders differently. The cause is core’s own canvas stylesheet…
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Block theme file edits not showing up? The database is winning (here’s the mechanism)
Edit a block theme’s template file and see nothing change? One Site Editor save created a database copy that beats your file…
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Where the Site Editor hides the template-part Replace control (and what your theme must ship to get it)
The Site Editor can replace a template part in one click, but the control hides in the kebab menu and only appears…
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theme.json silently drops a local() @font-face src (and the fix)
You can’t add a local() @font-face src through theme.json; WordPress drops it. Here’s why, verified in core, and where the fallback face…