0.5.0

What's Changed

• Fix five defects in the JS entry points by @alganet in #61
• Fix four defects in the phasm SAPI by @alganet in #62
• Join a header sent more than once by @alganet in #63
• 0.5.0 by @alganet in #64

Full Changelog: 0.4.0...0.5.0