Function isImgUrl

scripts/showImageOnHoverLink.js:17–19

(url)

  contentScript: {
    onDocumentStart_: (details) => {
      function isImgUrl(url) {
        return url.match(/\.(jpeg|jpg|gif|png)$/) != null;
      }

      const id = "show-image-on-hover-link";
      let div = document.createElement("div");