.zip file gets corrupted after downloading from FastAPI Server

Question

I have to download .zip file (created using python shutil library) using FastAPI Server.

Code to create .zip file

shutil.make_archive(base_name = base_name , 
                      format = 'zip', 
                      root_dir = 'fileName.zip')

Here is my route method.

@app.get("/_archiveFiles_download", response_class = FileResponse)  
async def archiveFiles_download(request: Request):  
     archiveFilePath = 'fileName.zip'  
     return FileResponse(path = archiveFilePath)

And JavaScript function

   // function to download archive file 
    function downloadZipFiles() {  
        $.get("./archiveFiles_download").done(function (data) {  
            console.log(data)  // prints garbage in console window  
            // Create an anchor element for the download link  
           const link = document.createElement("a");  
           const blob = new Blob([data1], { type: "application/x-zip-compressed" });
           const url = URL.createObjectURL(blob); 
           link.href = url;
           link.download = 'fileName_Download.zip'; // Set the desired file name 
           link.click();         // Clean up the temporary URL 
           URL.revokeObjectURL(url);  
       });  
  }`

console.log(data) prints garbage data in the inspect console. also downloaded file is corrupted.

Same thing happens if I send .txt file having some special characters.