400 bad request while submitting json data

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When passing json data from client to server using jquery , i getting 400 Bad Request . When viewed json data from firebug it show to be as below :

"NetworkError: 400 Bad Request - http://localhost:61153/Handlers/CENTRALLOOKUP/RelationTypeHandler.ashx?_=1402013961605&method=SaveRelationType&args=%22%5B%7B%5C%22RelTypeID%5C%22%3A1%2C%5C%22RelTypeName%5C%22%3A%5C%22fdg%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22dfg%5C%22%2C%5C%22Status%5C%22%3Atrue%2C%5C%22FromDate%5C%22%3A%5C%222070.02.02%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A3%2C%5C%22RelTypeName%5C%22%3A%5C%22Father1%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22Father1%5C%22%2C%5C%22Status%5C%22%3Afalse%2C%5C%22FromDate%5C%22%3A%5C%222070.02.02%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A7%2C%5C%22RelTypeName%5C%22%3A%5C%22Mother%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22Mother%5C%22%2C%5C%22Status%5C%22%3Atrue%2C%5C%22FromDate%5C%22%3A%5C%222070.09.08%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A8%2C%5C%22RelTypeName%5C%22%3A%5C%22relation%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22relation%5C%22%2C%5C%22Status%5C%22%3Afalse%2C%5C%22FromDate%5C%22%3A%5C%222070.02.02%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A9%2C%5C%22RelTypeName%5C%22%3A%5C%22fdg%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22dfg%5C%22%2C%5C%22Status%5C%22%3Atrue%2C%5C%22FromDate%5C%22%3A%5C%222070.02.02%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A10%2C%5C%22RelTypeName%5C%22%3A%5C%22dfgdf%5C%22%2C%5C%22RelTypeNameEng%5C%22%3A%5C%22dfgfd%5C%22%2C%5C%22Status%5C%22%3Atrue%2C%5C%22FromDate%5C%22%3A%5C%22207003%5C%22%2C%5C%22Action%5C%22%3A%5C%22%5C%22%7D%2C%7B%5C%22RelTypeID%5C%22%3A15%2C%5C%22RelTypeName%5C%22%3A%5C%22fdg%5C%22%2C%5C

I am urgently in need of help . Thank in advance

Posted 5-Jun-14 1:39am

rAZHere

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Bhushan Patki 5-Jun-14 7:47am

Did you convert data in proper Json format like these?
$.ajax({
data: JSON.stringify(DATA),
},
error: function(data) {
...
}
});

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sankarsan parida · Answer 1 · 2014-06-05T01:48:00

Edit:
web.config system.webServer section and set httpErrors existingResponse attribute

<system.webserver>
    ...
    <httperrors existingresponse="PassThrough"></httperrors>
    ...
</system.webserver>

The classic CustomErrors behaviour because I was comparing localhost with a remote server
and the first wouldn't explain how some of my other Authentication 'errors' were getting through intact

See the article
how-to-use-http-detailed-errors-in-iis[^]