disable_existing_loggers not read in from json file

[jazzabeanie]

Seems like json files are not being read in properly when passed as log_config.

main.py:

import uvicorn
import logging

from fastapi import FastAPI


app = FastAPI()

@app.on_event("startup")
async def startup_event():
    logger = logging.getLogger(__name__)
    logger.info("Everything is going well")
    raise Exception("Nope!")


if __name__ == "__main__":
    uvicorn.run("main:app", log_config="example.json")

example.json:

{
    "version": 1,
    "disable_existing_loggers": "false"
}

If I instead use uvicorn.run("main:app", log_config="example.yaml") it work fine.

example.yaml:

version: 1
disable_existing_loggers: False

[euri10]

unquote false