From 0ad2e90851fc99de7ef6bcc8397137b92cecbd14 Mon Sep 17 00:00:00 2001
From: James Foster <38274066+jd-foster@users.noreply.github.com>
Date: Wed, 20 Sep 2023 00:34:40 -0600
Subject: [PATCH] LaTeX enable usage (#12)

* Add LaTex usage info

* Improve error message
---
 README.md            | 5 +++++
 src/PlotlyKaleido.jl | 4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index bee7de2..1ca5252 100644
--- a/README.md
+++ b/README.md
@@ -48,3 +48,8 @@ or simply kill it:
 ```julia
 PlotlyKaleido.kill_kaleido()
 ```
+
+To enable LaTeX (using MathJax v2) in plots, use the keyword argument `mathjax`:
+```julia
+PlotlyKaleido.start(mathjax=true)  # start Kaleido server with MathJax enabled
+```
\ No newline at end of file
diff --git a/src/PlotlyKaleido.jl b/src/PlotlyKaleido.jl
index 6ac65f7..df603de 100644
--- a/src/PlotlyKaleido.jl
+++ b/src/PlotlyKaleido.jl
@@ -45,8 +45,8 @@ function start(;plotly_version = missing,
         )
     end
     if !(mathjax === missing)
-        if mathjax_version > v"2.7.9"
-            error("The given mathjax version $(mathjax_version) is greater than the last supported version of $(_mathjax_last_version).")
+        if mathjax_version >  _mathjax_last_version
+            error("The given mathjax version ($(mathjax_version)) is greater than the last supported version ($(_mathjax_last_version)) of Kaleido.")
         end
         if mathjax isa Bool && mathjax
             push!(chromium_flags, "--mathjax=$(_mathjax_url_path)/$(mathjax_version)/MathJax.js")