Inconsistent output from main and web worker

https://donaldcwl.github.io/browser-image-compression/example/basic.html

![image](https://github.com/Donaldcwl/browser-image-compression/assets/43649460/c7bfbae1-31eb-4d86-9e12-79b093291c97)

![image](https://github.com/Donaldcwl/browser-image-compression/assets/43649460/22eb18f6-5f38-4fd2-8490-7f650eb509a8)