前端JSON.parse: Bad control character in string literal in JSON

JSON.parse: Bad control character in string literal in JSON

# Don't listen to some people's blind BB, it's not caused by the large JSON data at all.

Phenomenon:

The backend returns JSON data to the frontend, and the frontend JS converts JSON, for example:
jQuery.parseJSON(str.replace(/\r|\n/ig,""));
JSON.parse(str)
will report: Bad control character in string literal in JSON

reason:

It is due to a problem with the format of json, which may be the following:
1. There are /n line breaks in the original data (this is the most common reason)
2. There are spaces before and after the data

solution:

1. http://jsonlint.com to check whether the json format is correct, and deal with the wrong format

in turn. 2. Remove spaces and line breaks at the front end before submitting
. 3. If you need to echo the data, you can remove spaces/line breaks in the background code