fix: cherry pic the #104 pr

Author: ravishanigarapu

src/main/java/com/iemr/admin/controller/employeemaster/EmployeeSignatureController.java

@@ -93,21 +93,25 @@ public ResponseEntity<byte[]> fetchFile(@PathVariable("userID") Long userID) thr
 
 			EmployeeSignature userSignID = employeeSignatureServiceImpl.fetchSignature(userID);
 			HttpHeaders responseHeaders = new HttpHeaders();
-			ContentDisposition cd = ContentDisposition.attachment()
-					.filename(userSignID.getFileName(), StandardCharsets.UTF_8).build();
-			responseHeaders.setContentDisposition(cd);
+			String fileName = URLEncoder.encode(userSignID.getFileName(), StandardCharsets.UTF_8);
+
+			responseHeaders.set(HttpHeaders.CONTENT_DISPOSITION,
+			    "attachment; filename=\"" + fileName + "\"; filename*=UTF-8''" + fileName);
 
 			MediaType mediaType;
 			try {
-				mediaType = MediaType.parseMediaType(userSignID.getFileType());
+			    mediaType = MediaType.parseMediaType(userSignID.getFileType());
 			} catch (InvalidMediaTypeException | NullPointerException e) {
-				mediaType = MediaType.APPLICATION_OCTET_STREAM;
+			    mediaType = MediaType.APPLICATION_OCTET_STREAM;
 			}
 
 			byte[] fileBytes = userSignID.getSignature(); // MUST be byte[]
 
-			return ResponseEntity.ok().headers(responseHeaders).contentType(mediaType).contentLength(fileBytes.length)
-					.body(fileBytes);
+			return ResponseEntity.ok()
+			    .headers(responseHeaders)
+			    .contentType(mediaType)
+			    .contentLength(fileBytes.length)
+			    .body(fileBytes);
 
 		} catch (Exception e) {
 			logger.error("Unexpected error:", e);