do not compare options objects by request-level options

lib/httpx/headers.rb

@@ -41,6 +41,15 @@ module HTTPX
       super
     end
 
+    def same_headers?(headers)
+      @headers.empty? || begin
+        headers.each do |k, v|
+          return false unless v == self[k]
+        end
+        true
+      end
+    end
+
     # merges headers with another header-quack.
     # the merge rule is, if the header already exists,
     # ignore what the +other+ headers has. Otherwise, set

lib/httpx/options.rb

@@ -108,10 +108,20 @@ module HTTPX
       def_option(method_name)
     end
 
+    REQUEST_IVARS = %i[@params @form @json @body].freeze
+
     def ==(other)
       ivars = instance_variables | other.instance_variables
       ivars.all? do |ivar|
-        instance_variable_get(ivar) == other.instance_variable_get(ivar)
+        case ivar
+        when :@headers
+          headers = instance_variable_get(ivar)
+          headers.same_headers?(other.instance_variable_get(ivar))
+        when *REQUEST_IVARS
+          true
+        else
+          instance_variable_get(ivar) == other.instance_variable_get(ivar)
+        end
       end
     end
 

lib/httpx/plugins/cookies.rb

@@ -55,6 +55,10 @@ module HTTPX
           end if @default_cookies
           store
         end
+
+        def ==(other)
+          @store == other.instance_variable_get(:@store)
+        end
       end
 
       def self.load_dependencies(*)