From 05b55fa8dc185aaa4ef0c94894e8887f0f26421e Mon Sep 17 00:00:00 2001
From: Sebastian Pfitzner <pfitzseb@physik.hu-berlin.de>
Date: Wed, 26 Sep 2018 17:40:09 +0200
Subject: [PATCH 1/2] honour `html_output_format` in Juno

---
 src/output.jl | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/output.jl b/src/output.jl
index 16494fda..59df4613 100644
--- a/src/output.jl
+++ b/src/output.jl
@@ -267,9 +267,21 @@ function showjuno(io::IO, m, plt)
     plt[:thickness_scaling] *= scale
 
     prepare_output(plt)
-    _show(io, m, plt)
-
-    plt[:size] = sz
-    plt[:dpi] = dpi
-    plt[:thickness_scaling] = thickness_scaling
+    try
+      _showjuno(io, m, plt)
+    finally
+      plt[:size] = sz
+      plt[:dpi] = dpi
+      plt[:thickness_scaling] = thickness_scaling
+    end
 end
+
+function _showjuno(io::IO, m::MIME"image/svg+xml", plt)
+  if Symbol(plt.attr[:html_output_format]) ≠ :svg
+    throw(MethodError(show, (typeof(plt),)))
+  else
+    _show(io, m, plt)
+  end
+end
+
+_showjuno(io::IO, m, plt) = _show(io, m, plt)

From ec8084823ce5cc65ae894ebba82a8d1a5f75ab3e Mon Sep 17 00:00:00 2001
From: Sebastian Pfitzner <pfitzseb@physik.hu-berlin.de>
Date: Wed, 26 Sep 2018 17:45:51 +0200
Subject: [PATCH 2/2] slightly nicer method error

---
 src/output.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/output.jl b/src/output.jl
index 59df4613..1122ab93 100644
--- a/src/output.jl
+++ b/src/output.jl
@@ -278,7 +278,7 @@ end
 
 function _showjuno(io::IO, m::MIME"image/svg+xml", plt)
   if Symbol(plt.attr[:html_output_format]) ≠ :svg
-    throw(MethodError(show, (typeof(plt),)))
+    throw(MethodError(show, (typeof(m), typeof(plt))))
   else
     _show(io, m, plt)
   end