title: Google Cloud Storage, how to get original filename for the file downloaded using signed url. Content-Disposition header
body: <p>For example, we have a bucket <code>"example_bucket"</code>, and in this bucket we have uploaded file with filename <code>"first_file.jpeg"</code>. Now, I want to create signed url for this file, using cli tool I run next command <code>gsutil -m signurl -r &lt;region&gt; &lt;path_to_the_service_account&gt; gs://example_bucket/first_file.jpeg</code> which will return signed url, using this url I want to download this file, but response doesn't contains any filename information(I wanna get original <code>"first_file.jpeg"</code> filename).</p>