Wait for image

index.js

@@ -13,14 +13,33 @@ if (!fs.existsSync(cacheFile)) { fs.writeFileSync(cacheFile, "{}") }
 
 var app = express()
 
+const imgWaitMax = 15
+
 app.get("/cached/*", (req, res) => {
     var imgURL = req.originalUrl
     imgURL = imgURL.substring(imgURL.indexOf("/", 2) + 1)
     var imgData = cachedImages[imgURL]
+    
+    var imgWait = 0
+    function waitForImage() {
+        if (imgWait < imgWaitMax) {
+            imgWait += 0.5
+            setTimeout(() => {
+                imgData = cachedImages[imgURL]
+                if (imgData) {
+                    fs.createReadStream(path.join(cachePath, imgData.file)).pipe(res)
+                } else {
+                    waitForImage()
+                }
+            }, 500);
+        } else {
+            fs.createReadStream(path.join(__dirname, "/imgs/notFound.png")).pipe(res)
+        }
+    }
     if (imgData) {
         fs.createReadStream(path.join(cachePath, imgData.file)).pipe(res)
     } else {
-        fs.createReadStream(path.join(__dirname, "/imgs/notFound.png")).pipe(res)
+        waitForImage()
     }
 })