Consider changes in height

attempt to wait until window is available

scripts/external/scraper.js

@@ -3,26 +3,36 @@ Read the contents of the page.
 */
 
 export default class scraper {
-	constructor(scraper_fields) {
+	/*
+	Scrape fields. 
+
+	@param {Object} scraper_fields the fields to scrape
+	@param {Object} options the options
+	*/
+	constructor(scraper_fields, options = {"wait until available": true}) {
 		let field_content;
 
 		// Quickly scroll down then to where the user already was to get automatically hidden content. 
 		function autoscroll() {
-			let SCROLL = {"x": window.scrollX, "y": window.scrollY};
+			let SCROLL = {"x": parseInt(window.scrollX), "y": parseInt(window.scrollY)};
 
-			// Repeat two times to ensure proper webpage load. 
-			for (let TIMES = 1; TIMES <= 2; TIMES++) {
-				[{"top": 0, "left": 0, "behavior": "smooth"}, {"top": document.body.scrollHeight, "left": document.body.scrollWidth, "behavior": "smooth"}].forEach((POSITION) => {
+			// Repeat every ten milliseconds until 3 times.
+
+			for (let SCROLLS = 1; SCROLLS <= 2; SCROLLS++) {
+				[{"top": document.body.scrollHeight, "left": document.body.scrollWidth}, {"top": 0, "left": 0}].forEach(POSITION => {
+					setTimeout(() => {
 						window.scrollTo(POSITION);
-				})
-			};
+					}, 10);
+				});
+			}
 
 			// Scroll back to user's previous position.
-			window.scrollTo({"top": SCROLL[`y`], "left": SCROLL[`x`], "behavior": "smooth"});
+			setTimeout(() => {
+				window.scrollTo(SCROLL);
+			}, 5)
 		};
 
-		autoscroll();
-
+		const read = () => {
 			if ((typeof scraper_fields).includes("object") && scraper_fields != null && scraper_fields) {
 	
 				/* Read for the particular fields. */
@@ -67,5 +77,24 @@ export default class scraper {
 					this[field_name] = field_content[field_name];
 				});
 			}
+		};
+
+		// Check every 1 second to check until autosccroll is done.
+		function wait_autoscroll(OPTIONS) {
+			return new Promise((resolve, reject) => {
+				// Check if autoscroll is done.
+				if (!((typeof window).includes(`undef`))) {
+					autoscroll();
+					resolve();
+				} else if (OPTIONS[`wait until available`]) {
+					setTimeout(() => {
+						wait_autoscroll().then(resolve).catch(reject);
+					}, 1000);
+				} else {
+					reject();
+				}
+			});
+		}
+		wait_autoscroll(options).then(() => {read();});
 	}
 }