[4.5.3] - 2019-10-06

Changed

• bundle: Bumped DirectLineJS to support metadata when uploading attachments, in PR #2433
  • [email protected]
  • Removed DirectLineJS as a dev dependency for component because it was not referenced

Fixed

• Fix #2248. Remove download links from user-uploaded attachment without thumbnails, by @compulim in PR #2262
• Fix Emulator:#1823. Fix Sendbox "Type your message" being read twice by AT, by @corinagum in PR #2423
• Fix #2422. Store thumbnail URL using the activity's attachment.thumbnailUrl field, by @compulim in PR #2433

Added

• Make thumbnails when uploading GIF/JPEG/PNG and store it in channelData.attachmentThumbnails, by @compulim, in PR #2206, requires modern browsers with following features:
  • Web Workers API
  • createImageBitmap
  • MessageChannel/MessagePort
  • OffscreenCanvas
    • Specifically OffscreenCanvas.getContext('2d')
• Render thumbnail for image attachments using activity.attachments[].thumbnailUrl, by @compulim in PR #2433

Subresource Integrity

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