Fix algorithm picking from options

Fixes #331.
jwt · Jul 8, 2020 · 2492d58 · 2492d58
1 parent d8dc68a
commit 2492d58
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/lib/jwt/decode.rb b/lib/jwt/decode.rb
@@ -47,10 +47,17 @@ def options_includes_algo_in_header?
     end
 
     def allowed_algorithms
-      if @options.key?(:algorithm)
+      # Order is very important - first check for string keys, next for symbols
+      if @options.key?('algorithm')
+        [@options['algorithm']]
+      elsif @options.key?(:algorithm)
         [@options[:algorithm]]
-      else
+      elsif @options.key?('algorithms')
+        @options['algorithms'] || []
+      elsif @options.key?(:algorithms)
         @options[:algorithms] || []
+      else
+        []
       end
     end