CSSStyleSheetHeader Properties | 
The CSSStyleSheetHeader type exposes the following members.
| Name | Description | |
|---|---|---|
| Disabled | 
            Denotes whether the stylesheet is disabled.
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| EndColumn | 
            Column offset of the end of the stylesheet within the resource (zero based).
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| EndLine | 
            Line offset of the end of the stylesheet within the resource (zero based).
              | |
| FrameId | 
            Owner frame identifier.
              | |
| HasSourceURL | 
            Whether the sourceURL field value comes from the sourceURL comment.
              | |
| IsConstructed | 
            True if this stylesheet is created through new CSSStyleSheet() or imported as a
            CSS module script.
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| IsInline | 
            Whether this stylesheet is created for STYLE tag by parser. This flag is not set for
            document.written STYLE tags.
              | |
| IsMutable | 
            Whether this stylesheet is mutable. Inline stylesheets become mutable
            after they have been modified via CSSOM API.
            <link> element's stylesheets become mutable only if DevTools modifies them.
            Constructed stylesheets (new CSSStyleSheet()) are mutable immediately after creation.
              | |
| Length | 
            Size of the content (in characters).
              | |
| Origin | 
            Stylesheet origin.
              | |
| OwnerNode | 
            The backend id for the owner node of the stylesheet.
              | |
| SourceMapURL | 
            URL of source map associated with the stylesheet (if any).
              | |
| SourceURL | 
            Stylesheet resource URL. Empty if this is a constructed stylesheet created using
            new CSSStyleSheet() (but non-empty if this is a constructed sylesheet imported
            as a CSS module script).
              | |
| StartColumn | 
            Column offset of the stylesheet within the resource (zero based).
              | |
| StartLine | 
            Line offset of the stylesheet within the resource (zero based).
              | |
| StyleSheetId | 
            The stylesheet identifier.
              | |
| Title | 
            Stylesheet title.
              |