Use the html tag for text/html

This fixes the interactivity of Gadfly plots on Pluto, solving the Gadfly example in fonsp/Pluto.jl#546 and this [stackoverflow question](https://stackoverflow.com/questions/66297678/using-gadfly-interactively-in-pluto).
GiovineItalia · Jul 11, 2021 · 3dbc5a0 · 3dbc5a0
1 parent da671cd
commit 3dbc5a0
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/svg.jl b/src/svg.jl
@@ -511,7 +511,12 @@ function show(io::IO, ::MIME"text/html", img::SVG)
     if img.cached_out === nothing
         img.cached_out = String(take!(img.out))
     end
-    write(io, img.cached_out)
+    write(io, 
+        """
+        <html>
+        $(img.cached_out)
+        </html>
+        """)
 end
 
 function show(io::IO, ::MIME"image/svg+xml", img::SVG)