Wait for image

index.js

@@ -13,15 +13,34 @@ 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 {
+        waitForImage()
+    }
 })
 
 app.listen(PORT, () => {