Fix: Add Doctype to be in standard mode (#17087)

Dedelweiss · web-flow · commit 0625d1c62e0f · 2023-03-27T07:56:18.000+02:00
In this PR, I added the `<!DOCTYPE html>` in the HtmlRenderer file. I combined in the def page content the tag html with all the content of the page (head, body,...) and the Doctype. ## Result : <img width="400" alt="Screenshot 2023-03-13 at 16 03 43" src="https://user-images.githubusercontent.com/44496264/224742326-280b1f86-e578-4f25-8d13-9ca39f6c0aec.png"> (On chrome) <img width="400" alt="Screenshot 2023-03-13 at 16 04 36" src="https://user-images.githubusercontent.com/44496264/224742405-c5dbc809-c085-4cde-aa4d-4faffc088682.png"> Fixes #16803
diff --git a/scaladoc/src/dotty/tools/scaladoc/renderers/HtmlRenderer.scala b/scaladoc/src/dotty/tools/scaladoc/renderers/HtmlRenderer.scala
@@ -41,14 +41,18 @@ class HtmlRenderer(rootPackage: Member, members: Map[DRI, Member])(using ctx: Do
       case _ => Nil)
       :+ (Attr("data-pathToRoot") := pathToRoot(page.link.dri))
 
-    html(attrs: _*)(
+    val htmlTag = html(attrs: _*)(
       head((mkHead(page) :+ docHead):_*),
       body(
         if !page.hasFrame then docBody
         else mkFrame(page.link, parents, docBody, toc)
       )
     )
 
+    val doctypeTag = s"<!DOCTYPE html>"
+    val finalTag = raw(doctypeTag + htmlTag.toString)
+    finalTag
+
   override def render(): Unit =
     val renderedResources = renderResources()
     super.render()
