diff --git a/shared/utils/urls.test.ts b/shared/utils/urls.test.ts
index 62de14b0c..6d40aa5c6 100644
--- a/shared/utils/urls.test.ts
+++ b/shared/utils/urls.test.ts
@@ -2,13 +2,19 @@ import * as urlsUtils from "./urls";
 import { urlRegex } from "./urls";
 
 describe("IsUrl Method", () => {
-  describe("invalid urls", () => {
-    it("should return false", () => {
-      expect(urlsUtils.isUrl("")).toBe(false);
-      expect(urlsUtils.isUrl("#invalidurl")).toBe(false);
-      expect(urlsUtils.isUrl("mailto:")).toBe(false);
-      expect(urlsUtils.isUrl("://")).toBe(false);
-    });
+  it("should return false for invalid url", () => {
+    expect(urlsUtils.isUrl("")).toBe(false);
+    expect(urlsUtils.isUrl("#invalidurl")).toBe(false);
+    expect(urlsUtils.isUrl("mailto:")).toBe(false);
+    expect(urlsUtils.isUrl("sms:")).toBe(false);
+    expect(urlsUtils.isUrl("://")).toBe(false);
+  });
+
+  it("should return true for valid urls", () => {
+    expect(urlsUtils.isUrl("http://example.com")).toBe(true);
+    expect(urlsUtils.isUrl("https://www.example.com")).toBe(true);
+    expect(urlsUtils.isUrl("seafile://openfile")).toBe(true);
+    expect(urlsUtils.isUrl("figma://launch")).toBe(true);
   });
 });
 
diff --git a/shared/utils/urls.ts b/shared/utils/urls.ts
index 7981ae9d3..3c6e64f9c 100644
--- a/shared/utils/urls.ts
+++ b/shared/utils/urls.ts
@@ -45,10 +45,11 @@ export function isInternalUrl(href: string) {
 /**
  * Returns true if the given string is a url.
  *
- * @param url The url to check.
+ * @param text The url to check.
+ * @param options Parsing options.
  * @returns True if a url, false otherwise.
  */
-export function isUrl(text: string) {
+export function isUrl(text: string, options?: { requireHostname: boolean }) {
   if (text.match(/\n/)) {
     return false;
   }
@@ -57,7 +58,18 @@ export function isUrl(text: string) {
     const url = new URL(text);
     const blockedProtocols = ["javascript:", "file:", "vbscript:", "data:"];
 
-    return url.hostname !== "" && !blockedProtocols.includes(url.protocol);
+    if (blockedProtocols.includes(url.protocol)) {
+      return false;
+    }
+    if (url.hostname) {
+      return true;
+    }
+
+    return (
+      url.protocol !== "" &&
+      url.pathname.startsWith("//") &&
+      !options?.requireHostname
+    );
   } catch (err) {
     return false;
   }
@@ -86,7 +98,7 @@ export function sanitizeUrl(url: string | null | undefined) {
   }
 
   if (
-    !isUrl(url) &&
+    !isUrl(url, { requireHostname: false }) &&
     !url.startsWith("/") &&
     !url.startsWith("#") &&
     !url.startsWith("mailto:") &&