Object Storage Service:0048-00000101

Problem description

When you access an OSS object using a standard domain name, the browser downloads the object instead of displaying it inline.

Causes

This behavior occurs when all three of the following conditions are met:

• The bucket was created after 11:00:00 on September 24, 2019.

• The object is accessed via a standard domain name.

• The object's content type is one of the following:

    image/jpeg
    image/gif
    image/tiff
    image/png
    image/webp
    image/svg+xml
    image/bmp
    image/x-ms-bmp
    image/x-cmu-raster
    image/exr
    image/x-icon
    image/heic

When these conditions are met, OSS adds the following headers to the response:

x-oss-force-download: true
Content-Disposition: attachment

The Content-Disposition: attachment header instructs the browser to save the response as a file rather than render it inline.

Examples

A bucket created after 11:00:00 on September 24, 2019 contains apple.jpeg with content type image/jpeg. Accessing it via a standard domain name returns the following response:

GET /apple.jpeg HTTP/1.1

HTTP/1.1 200 OK
Content-Type: image/jpeg
Content-Disposition: attachment
x-oss-force-download: true

The Content-Disposition: attachment header causes the browser to prompt a download instead of rendering the image inline.

Solutions

Use a custom domain name to access the object. For setup instructions, see Map custom domain names.

References

• Map custom domain names