FileSaver.saveAs(..) function throwing error suddenly

We are using the function above to download the file in our application. Earlier it worked fine. But suddently it stopped working. getting the below error in Chrome Browser.

**Uncaught (in promise) TypeError: Failed to execute 'createObjectURL' on 'URL': No function was found that matched the signature provided.**
**Chrome Version 78.0.3904.87**

In Firefox, the error is:
**TypeError: Argument 1 is not valid for any of the 1-argument overloads of URL.createObjectURL.**

we are using firefox latest version.
We are using the below version for the file saver.
"file-saver": "1.3.8",

We have not modified the version recently. But suddenly it stopped working.
Please help us to fix this.