浏览器地址栏路径中有百分号%在history包中进行decode报错

场景：react-router-dom5："^5.2.0"，依赖的history在创建location时，createLocation方法中调用decodeURI，

location.pathname = decodeURI(location.pathname);

location.pathname初次是%25，解码后变%，后来又有其他地方点用createLocation此时decodeURI('%')报错

也就是说decodeURI这个方法总是把%25解码，其他符号不会被解码，导致报错

 

解决方式：

location.pathname.replace(new RegExp('%25', 'g'), '%2525');

 

小常识：

decodeURI('/search/result/%25')
"/search/result/%"
decodeURI('/search/result/%23')
"/search/result/%23"