fix(next): Replace toBlob() with convertToBlob() for OffscreenCanvas compatibility

[jhon2c]

Problem

When using the web worker version in Next.js projects, users encountered a persistent error:

Conversion failed: k.toBlob is not a function

The next version (src/next/index.js) uses OffscreenCanvas instead of regular HTMLCanvasElement to support server-side rendering and web workers. However, the code was calling canvas.toBlob(), which is only available on HTMLCanvasElement, not on OffscreenCanvas.

Solution

Replaced canvas.toBlob() with canvas.convertToBlob() in the heicTo function. The convertToBlob() method is the correct API for OffscreenCanvas and returns a Promise directly, allowing us to simplify the code by removing the manual Promise wrapper.

Changes

File: src/next/index.js

• Changed from: canvas.toBlob(callback, type, quality) wrapped in a Promise
• Changed to: canvas.convertToBlob({ type, quality }) which returns a Promise

Benefits

1. Fixes the error: Resolves the k.toBlob is not a function error in Next.js projects
2. Correct API usage: Uses the proper OffscreenCanvas API method
3. Code simplification: Removes unnecessary Promise wrapper since convertToBlob() already returns a Promise
4. Better compatibility: Ensures the Next.js version works correctly with web workers and SSR environments

Additional Updates

• Dependencies: Updated npm dependencies to ensure the build system is up to date
• Security: Addressed 1 high severity vulnerability found in dependencies during the update process

Testing

• Rebuilt the package successfully
• The fix is now available in dist/next/heic-to.js

[hoppergee]

Sorry, I missed this. I'll take a look in 2 days.