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Fix HTMX inline styles and Prism worker message parsing

ac00929fcb2269e874a0b7c0e6868885f57723ce · Keenan Nemetz · 12d ago · parent a76b2f38

Fix HTMX inline styles and Prism worker message parsing

HTMX injects a <style> element for its indicator classes, which style-src 'self' blocks. Turn that off through its config meta tag and keep the indicator rules in the stylesheet instead.

Prism installs its own worker message handler that expects a JSON string, so it threw JSON.parse on every structured job before prism-worker.js could highlight it. Disable that handler; the worker already owns the message path.

server/ui_test.go +23

@@ -86,6 +86,29 @@ func TestStaticAssetsAreServedFromTheBinary(t *testing.T) {
	86	86	}
	87	87	}
	88	88
		89	// HTMX adds its indicator styles with a <style> element unless told not to.
		90	// style-src 'self' blocks that injection, so the shell must carry the config
		91	// that turns it off and the stylesheet must carry the rules it would have added.
		92	func TestHTMXDoesNotInjectInlineStyles(t *testing.T) {
		93	t.Parallel()
		94	f := newFixture(t)
		95	code, shell := f.get("/")
		96	if code != 200 {
		97	t.Fatalf("landing page = %d", code)
		98	}
		99	if !strings.Contains(shell, `name="htmx-config"`) \|\|
		100	!strings.Contains(shell, `"includeIndicatorStyles":false`) {
		101	t.Fatal("the shell does not turn off HTMX's inline indicator styles")
		102	}
		103	code, css := f.get("/static/vole.css")
		104	if code != 200 {
		105	t.Fatalf("stylesheet = %d", code)
		106	}
		107	if !strings.Contains(css, ".htmx-indicator") \|\| !strings.Contains(css, ".htmx-request .htmx-indicator") {
		108	t.Fatal("the stylesheet does not carry HTMX's indicator rules")
		109	}
		110	}
		111
	89	112	// TestTheEmblemShipsAndTheShellNamesIt: the mark and the favicon are one file,
	90	113	// so a page that points at a name nobody ships is a broken tab icon on every
	91	114	// page. This is the test that would have caught the rename.