When Ayatollah Ali Khamenei was laid to rest in Tehran earlier this month, Indonesia, home to more Muslims than any other nation on Earth, decided to send only its ambassador – at first. The decision raised questions not only about Jakarta’s non-aligned foreign policy but also the tensions at the heart of President Prabowo Subianto’s prized “good-neighbour” diplomacy. One former Indonesian ambassador called the minimal initial presence “a slap in the face” for Iran and asked whether Washington...