Include console type and stack trace in logger output

lib/ferrum/page.rb

@@ -436,7 +436,7 @@ def subscribe
 
       if @options.logger
         on("Runtime.consoleAPICalled") do |params|
-          params["args"].each { |r| @options.logger.puts(r["value"]) }
+          log_console_api(params)
         end
       end
 
@@ -493,6 +493,16 @@ def prepare_page
       document_node_id
     end
 
+    def log_console_api(params)
+      message = params.fetch("args", []).filter_map { |arg| arg["value"] || arg["description"] }.join(" ")
+      @options.logger.puts("[#{params['type']}] #{message}")
+
+      params.dig("stackTrace", "callFrames")&.each do |frame|
+        location = "#{frame['url']}:#{frame['lineNumber'].to_i + 1}:#{frame['columnNumber'].to_i + 1}"
+        @options.logger.puts("    at #{frame['functionName']} (#{location})")
+      end
+    end
+
     def inject_extensions
       @options.extensions.each do |extension|
         # https://github.com/GoogleChrome/puppeteer/issues/1443

spec/browser_spec.rb

@@ -45,6 +45,9 @@
       browser = Ferrum::Browser.new(logger: logger)
       browser.go_to(base_url("/console_log"))
       expect(logger.string).to include("Hello world")
+      expect(logger.string).to include("[log] Hello world")
+      expect(logger.string).to include("at window.onload")
+      expect(logger.string).to include("/console_log")
     ensure
       browser&.quit
     end