HTML: Support <script type="text/html"> (#8371)

* Support HTML Script

* Add changelog

* Remove lang support

changelog_unreleased/html/pr-8371.md

@@ -0,0 +1,26 @@
+#### Support `<script type="text/html>` ([#8371](https://github.com/prettier/prettier/pull/8371) by [@sosukesuzuki](https://github.com/sosukesuzuki))
+
+<!-- prettier-ignore -->
+```html
+<!-- Input -->
+<script type="text/html">
+<div>
+<p>foo</p>
+</div>
+</script>
+
+<!-- Prettier stable -->
+<script type="text/html">
+  <div>
+  <p>foo</p>
+  </div>
+</script>
+
+<!-- Prettier master -->
+<script type="text/html">
+  <div>
+    <p>foo</p>
+  </div>
+</script>
+
+```

src/language-html/utils.js

@@ -398,6 +398,10 @@ function _inferScriptParser(node) {
     return "markdown";
   }
 
+  if (type === "text/html") {
+    return "html";
+  }
+
   if (type && (type.endsWith("json") || type.endsWith("importmap"))) {
     return "json";
   }

tests/html/script/__snapshots__/jsfmt.spec.js.snap

@@ -101,6 +101,11 @@ printWidth: 80
 </script><script type="invalid">
   {   "json":false  }
 </script>
+<script type="text/html">
+  <div>
+  <p>foo</p>
+  </div>
+</script>
 
 <script
   async=""
@@ -132,6 +137,11 @@ End Function
 <script type="invalid">
   {   "json":false  }
 </script>
+<script type="text/html">
+  <div>
+    <p>foo</p>
+  </div>
+</script>
 
 <script
   async=""

tests/html/script/script.html

@@ -12,6 +12,11 @@
 </script><script type="invalid">
   {   "json":false  }
 </script>
+<script type="text/html">
+  <div>
+  <p>foo</p>
+  </div>
+</script>
 
 <script
   async=""