java.lang.NullPointerException: Cannot find parameter "json" from request.

Problem

I found out I fail to execute print functions in every function in my system.

And the console throw this exception message:

 java.lang.NullPointerException: Cannot find parameter "json" from request.  
   at java.util.Objects.requireNonNull(Objects.java:226) ~[na:1.7.0_25]  
   at com.cht.commons.web.resolver.JsonParamResolver.resolveArgument(JsonParamResolver.java:34) ~[cht-commons-web-0.1.0-SNAPSHOT.jar:0.1.0-SNAPSHOT]  

Root Cause
As I check its request header, it submit nothing

It result from my request had been blocked by AdBlock (Chrome Plug-in), which I installed yesterday. That's why I failed to execute every print function today.

As I disabled this Chrome plug-in, AdBlock, and check its request header again. We can see request header had submitted data.

Finally, my report function had recovered.