JSON object undefined error solution, json undefined

JSON object undefined error solution, json undefined

When I was using Moodle today, I suddenly found that the "JSON undefined" error message was prompted when I entered the courseware under IE.

Later I found a "json2.js" and introduced it for testing. OK to solve the problem.

Later, I thought it was unreliable. After careful consideration, I found that my IE is in compatible mode.

Switch to the normal mode and deregister the code that references "json2.js.

It is still normal.

Therefore, I guess IE may be for the "compatible" feature in the compatibility mode, so I won't load too many uncertain things (the smallest startup unit), including the JSON parsing function.

The above is all the content of the solution to the undefined JSON object error that xiaobian brings to you. I hope it will be helpful to you and support more customers ~