fix(proxy): ignore incoming accept header

[danielroe]

🔗 Linked issue

resolves nuxt/nuxt#24742
resolves nuxt/nuxt#24609
resolves nuxt/nuxt#23539

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

This avoids proxying accept headers when fetching with event. Alternatively we could support an option via final argument to add additional headers to ignore, if you prefer.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (da128d8) 77.82% compared to head (2f65cdc) 77.83%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #646   +/-   ##
=======================================
  Coverage   77.82%   77.83%           
=======================================
  Files          47       47           
  Lines        4285     4286    +1     
  Branches      611      608    -3     
=======================================
+ Hits         3335     3336    +1     
  Misses        933      933           
  Partials       17       17           

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[pi0]

Thanks!