diff --git a/src/backends/plotly.jl b/src/backends/plotly.jl
index d30653ba..c03f9b30 100644
--- a/src/backends/plotly.jl
+++ b/src/backends/plotly.jl
@@ -20,9 +20,13 @@ using UUIDs
 # ----------------------------------------------------------------
 
 function labelfunc(scale::Symbol, backend::PlotlyBackend)
-    f = scale == :log10 ? x->"10<sup>$x</sup>" : identity
-    # replace dash with \minus (U+2212)
-    x -> replace(f(x), "-" => "−")
+    texfunc = labelfunc_tex(scale)
+    function (x)
+        tex_x = texfunc(x)
+        sup_x = replace( tex_x, r"\^{(.*)}"=>s"<sup>\1</sup>" )
+        # replace dash with \minus (U+2212)
+        replace(sup_x, "-" => "−")
+    end
 end
 
 function plotly_font(font::Font, color = font.color)
@@ -342,7 +346,7 @@ function plotly_legend_pos(pos::Symbol)
     ybot = 0.07
     ytop = 1.0
     xcenter = 0.55
-    ycenter = 0.52    
+    ycenter = 0.52
     center = 0.5
     youtertop = 1.1
     youterbot = -0.15
@@ -357,9 +361,9 @@ function plotly_legend_pos(pos::Symbol)
         bottomright = (coords = [1.0, ybot], xanchor = "right", yanchor = "bottom"),
         topright    = (coords = [1.0, 1.0], xanchor = "right", yanchor = "top"),
         topleft     = (coords = [xleft, 1.0], xanchor = "left",  yanchor = "top"),
-        outertop =(coords = [center, youtertop ], xanchor = "upper",  yanchor = "middle"), 
-        outerbottom =(coords = [center, youterbot], xanchor = "lower",  yanchor = "middle"), 
-        outerleft =(coords = [xouterleft, center], xanchor = "left",  yanchor = "top"), 
+        outertop =(coords = [center, youtertop ], xanchor = "upper",  yanchor = "middle"),
+        outerbottom =(coords = [center, youterbot], xanchor = "lower",  yanchor = "middle"),
+        outerleft =(coords = [xouterleft, center], xanchor = "left",  yanchor = "top"),
         outerright =(coords = [xouterright, center], xanchor = "right",  yanchor = "top"),
         outertopleft =(coords = [xouterleft, ytop], xanchor = "upper",  yanchor = "left"),
         outertopright = (coords = [xouterright, ytop], xanchor = "upper",  yanchor = "right"),
diff --git a/src/utils.jl b/src/utils.jl
index 60ee58d8..59141965 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -1069,7 +1069,7 @@ guidefont(ax::Axis) = font(
 
 # ---------------------------------------------------------------
 # converts unicode scientific notation, as returned by Showoff,
-# to a tex-like format (supported by gr, pyplot, and gpfplot).
+# to a tex-like format (supported by gr, pyplot, and pgfplots).
 
 function convert_sci_unicode(label::AbstractString)
     unicode_dict = Dict(