
Previously, calling `setProperty` or `removeProperty` from JS on a CSSStyleDeclaration returned from `getComputedStyle()` would return null. We now return a NoModificationAllowedError instead, which aligns our implementation with the specification.
19 lines
690 B
HTML
19 lines
690 B
HTML
<!DOCTYPE html>
|
|
<script src="../include.js"></script>
|
|
<script>
|
|
test(() => {
|
|
try {
|
|
document.defaultView.getComputedStyle(document.documentElement, null).setProperty("foo", "bar");
|
|
println("FAIL");
|
|
} catch (e) {
|
|
println(`Calling setProperty() on a computed CSSStyleDeclaration throws error of type: ${e.name}`);
|
|
}
|
|
|
|
try {
|
|
document.defaultView.getComputedStyle(document.documentElement, null).removeProperty("foo");
|
|
println("FAIL");
|
|
} catch (e) {
|
|
println(`Calling removeProperty() on a computed CSSStyleDeclaration throws error of type: ${e.name}`);
|
|
}
|
|
});
|
|
</script>
|