1 files changed, 15 insertions, 0 deletions
diff --git a/webAO/utils/tryBackgroundUrls.ts b/webAO/utils/tryBackgroundUrls.ts
new file mode 100644
index 0000000..154978b
--- /dev/null
+++ b/webAO/utils/tryBackgroundUrls.ts
@@ -0,0 +1,15 @@
+import fileExists from "./fileExists";
+import transparentPng from "../constants/transparentPng";
+const urlExtensionsToTry = [".png", ".gif", ".webp", ".apng"];
+const tryBackgroundUrls = async (url: string) => {
+  for (let i = 0; i < urlExtensionsToTry.length; i++) {
+    const extension = urlExtensionsToTry[i];
+    const fullFileUrl = url + extension;
+    const exists = await fileExists(fullFileUrl);
+    if (exists) {
+      return fullFileUrl;
+    }
+  }
+  return transparentPng;
+};
+export default tryBackgroundUrls;