sourceURL property
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).
Implementation
final String 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).
final String sourceURL;