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fix: Content-Disposition header to comply with RFC2183

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Changed Content-Disposition header from 'filename=...' to
'attachment; filename=...' to comply with RFC 2183.

This fixes issue #8914 where third-party downloading libraries
fail to parse the filename correctly due to incorrect header format.

Fixes: https://github.com/Comfy-Org/ComfyUI/issues/8914
This commit is contained in:
LincolnBurrows2017 2026-03-13 10:40:57 +00:00
parent 4a8cf359fe
commit 47f60527e2
1 changed files with 4 additions and 4 deletions
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8
server.py
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@ -523,7 +523,7 @@ class PromptServer():
buffer.seek(0)
return web.Response(body=buffer.read(), content_type=f'image/{image_format}',
headers={"Content-Disposition": f"filename=\"{filename}\""})
headers={"Content-Disposition": f"attachment; filename=\"{filename}\""})
if 'channel' not in request.rel_url.query:
channel = 'rgba'
@ -543,7 +543,7 @@ class PromptServer():
buffer.seek(0)
return web.Response(body=buffer.read(), content_type='image/png',
headers={"Content-Disposition": f"filename=\"{filename}\""})
headers={"Content-Disposition": f"attachment; filename=\"{filename}\""})
elif channel == 'a':
with Image.open(file) as img:
@ -560,7 +560,7 @@ class PromptServer():
alpha_buffer.seek(0)
return web.Response(body=alpha_buffer.read(), content_type='image/png',
headers={"Content-Disposition": f"filename=\"{filename}\""})
headers={"Content-Disposition": f"attachment; filename=\"{filename}\""})
else:
# Get content type from mimetype, defaulting to 'application/octet-stream'
content_type = mimetypes.guess_type(filename)[0] or 'application/octet-stream'
@ -572,7 +572,7 @@ class PromptServer():
return web.FileResponse(
file,
headers={
"Content-Disposition": f"filename=\"{filename}\"",
"Content-Disposition": f"attachment; filename=\"{filename}\"",
"Content-Type": content_type
}
)