Spring MVC return json string exception

Question

I first use browser to request. It can work. But not with ajax code and thorw an exception.

2018-01-05 16:25:14 ERROR [com.ndl.gm.controller.BaseController] Could not parse accept header [application/json, text/javascript, */*; q=0.01]: Invalid mime type " text/javascript": does not contain '/'
org.springframework.web.HttpMediaTypeNotAcceptableException: Could not parse accept header [application/json, text/javascript, */*; q=0.01]: Invalid mime type " text/javascript": does not contain '/'
    at org.springframework.web.accept.HeaderContentNegotiationStrategy.resolveMediaTypes(HeaderContentNegotiationStrategy.java:54)
    at 

Here is my controller.

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Answer 1

I solve my problem by trace the exception. Then i find the ' text/javascript'. It will be split to two mime. But the string '&nbsp' don't contain '/'. So it goes wrong. The i would like to override the function in request getHeader, then i find i have been written the getHeader function to prevent xss attack. So, i just remove the code and it works.