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Set rel noopener and noreferrer on external links in markdown (#3666)

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* Set rel noopener and noreferrer on external links in markdown

* Update ha-markdown.ts

* Update ha-markdown.ts
This commit is contained in:
gregod 2019-09-10 22:44:02 +02:00 committed by Paulus Schoutsen
parent abc849f623
commit 7912f0bf9e
1 changed files with 8 additions and 4 deletions
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12
src/components/ha-markdown.ts
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@ -49,13 +49,17 @@ class HaMarkdown extends UpdatingElement {
// Open external links in a new window // Open external links in a new window
if ( if (
node.nodeName === "A" && node instanceof HTMLAnchorElement &&
(node as HTMLAnchorElement).host !== document.location.host node.host !== document.location.host
) { ) {
(node as HTMLAnchorElement).target = "_blank"; node.target = "_blank";
// protect referrer on external links and deny window.opener access for security reasons
// (see https://mathiasbynens.github.io/rel-noopener/)
node.rel = "noreferrer noopener";
// Fire a resize event when images loaded to notify content resized // Fire a resize event when images loaded to notify content resized
} else if (node.nodeName === "IMG") { } else if (node) {
node.addEventListener("load", this._resize); node.addEventListener("load", this._resize);
} }
} }