json file do not have syntax error prompt

[scucheri]

Description

[Description of the issue]

Steps to Reproduce

1. open a json file
2. write some wrong format content

Expected behavior: give me some prompt when the json format is wrong

Actual behavior: [What actually happens]

Reproduces how often: [What percentage of the time does it reproduce?]

Versions

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Additional Information

Any additional information, configuration or data that might be necessary to reproduce the issue.