Fix #1473 : Try HTTP request in scene should send headers properly

[Pierre-Gilles]

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Description of change

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[relativeci]

Job #240: Bundle Size — 6.73MB (~+0.01%).

7472185 vs ee812a2

Changed metrics (2/10)

Metric	Current	Baseline
Initial JS	2.92MB(~+0.01%)	2.92MB
Cache Invalidation	43.25%	0%

Changed assets by type (1/7)

	Current	Baseline
JS	4.82MB (~+0.01%)	4.82MB

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View Job #240 report on app.relative-ci.com

[codecov]

Codecov Report

Merging #1475 (fe3d71e) into master (ee812a2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1475   +/-   ##
=======================================
  Coverage   96.59%   96.59%           
=======================================
  Files         616      616           
  Lines        8887     8887           
=======================================
  Hits         8584     8584           
  Misses        303      303           

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