change chrome path priority close #1

html2pdf.go

@@ -11,11 +11,14 @@ func Convert(chromePath, inputFile, outputFile string) error {
 		Input:  inputFile,
 		Output: outputFile,
 	}
-	c := converter.NewConverter(chromePath)
+	c, err := converter.NewConverter(chromePath)
+	if err != nil {
+		return err
+	}
 	return c.Convert(input)
 }
 
 // NewConverterInstance start new chrome headless shell instance
-func NewConverterInstance(chromePath string) *converter.Converter {
+func NewConverterInstance(chromePath string) (*converter.Converter, error) {
 	return converter.NewConverter(chromePath)
 }