Since 1.0.0-next.82, attempting to set a Content-Type header for a binary response in get handler will throw an exception:
str.charCodeAt is not a function
TypeError: str.charCodeAt is not a function
at hash (file:///Users/leek/Code/Playground/sveltekit-jpeg-issue/nod
e_modules/@sveltejs/kit/dist/ssr.js:1509:37)
at render (file:///Users/leek/Code/Playground/sveltekit-jpeg-issue/n
ode_modules/@sveltejs/kit/dist/ssr.js:1473:26)
at async ssr (file:///Users/leek/Code/Playground/sveltekit-jpeg-issu
e/node_modules/@sveltejs/kit/dist/ssr.js:1454:10)
at async Immediate.<anonymous> (file:///Users/leek/Code/Playground/s
veltekit-jpeg-issue/node_modules/@sveltejs/kit/dist/chunks/index.js:3297
:23)