return ResponseEntity.ok().headers(headers).contentLength(file.contentLength())
.contentType(MediaType.parseMediaType("application/octet-stream"))
.body(new InputStreamResource(file.getInputStream()));
=========================
this.http.get(src, {
responseType: 'blob'
}).subscribe({
next: (response) => successFunc(response),
error: (error) => errorFunc(error)
});
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