Add relative semantics for baseURL
Differential Revision: https://phabricator.services.mozilla.com/D65373
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1608489
gecko-commit: 2c65e495a53e71f45e00ec219a409a8bffb5bee7
gecko-integration-branch: autoland
gecko-reviewers: emilio
diff --git a/css/cssom/CSSStyleSheet-constructable-baseURL.tentative.html b/css/cssom/CSSStyleSheet-constructable-baseURL.tentative.html
index bd4159a..b43ed61 100644
--- a/css/cssom/CSSStyleSheet-constructable-baseURL.tentative.html
+++ b/css/cssom/CSSStyleSheet-constructable-baseURL.tentative.html
@@ -7,10 +7,10 @@
<script src='/resources/testharnessreport.js'></script>
<script>
-function currentPath() {
- const pathParts = location.href.split("/")
- pathParts.pop();
- return pathParts.join("/");
+function currentLocation() {
+ const sections = location.href.split("/")
+ sections.pop();
+ return sections.join("/");
}
test(() => {
@@ -24,7 +24,7 @@
const baseURL = `${location.origin}/custom/path/`;
const fullURL = `${baseURL}${fileName}`;
- const sheet = new CSSStyleSheet({ baseURL: baseURL });
+ const sheet = new CSSStyleSheet({ baseURL });
span.shadowRoot.adoptedStyleSheets = [sheet];
sheet.replaceSync(`* { background-image: url("${fileName}"); }`);
@@ -37,7 +37,30 @@
}, "Constructing sheet with custom base URL ueses that URL for CSS rules");
test(() => {
- assert_throws_dom("NotAllowedError", () => { new CSSStyleSheet({ baseURL: "::::"}) });
+ const span = document.createElement("span");
+ target.appendChild(span);
+ span.attachShadow({ mode: "open" })
+ const shadowDiv = document.createElement("div");
+ span.shadowRoot.appendChild(shadowDiv);
+
+ const fileName = "example.png"
+ const baseURL = "custom/path/";
+ const fullURL = `${currentLocation()}/${baseURL}${fileName}`;
+
+ const sheet = new CSSStyleSheet({ baseURL });
+ span.shadowRoot.adoptedStyleSheets = [sheet];
+
+ sheet.replaceSync(`* { background-image: url("${fileName}"); }`);
+ const styleFromRelative = getComputedStyle(shadowDiv).backgroundImage;
+
+ sheet.replaceSync(`* { background-image: url("${fullURL}"); }`);
+ const styleFromFull = getComputedStyle(shadowDiv).backgroundImage;
+
+ assert_equals(styleFromRelative, styleFromFull);
+}, "Constructing sheet with relative URL adds to the constructor document's base URL");
+
+test(() => {
+ assert_throws_dom("NotAllowedError", () => { new CSSStyleSheet({ baseURL: "chrome://"}) });
}, "Constructing sheet with invalid base URL throws a NotAllowedError");
</script>
