Bugfixes, add A3 poster

Logic/Actors/OverpassFeatureSource.ts

@@ -191,6 +191,9 @@ export default class OverpassFeatureSource implements FeatureSource {
 
         const self = this
         const overpassUrls = self.state.overpassUrl.data
+        if(overpassUrls === undefined || overpassUrls.length === 0){
+            throw "Panic: overpassFeatureSource didn't receive any overpassUrls"
+        }
         let bounds: BBox
         do {
             try {

Logic/Osm/Overpass.ts

@@ -14,7 +14,7 @@ export class Overpass {
     private readonly _interpreterUrl: string
     private readonly _timeout: Store<number>
     private readonly _extraScripts: string[]
-    private _includeMeta: boolean
+    private readonly _includeMeta: boolean
     private _relationTracker: RelationsTracker
 
     constructor(

Logic/State/FeatureSwitchState.ts

@@ -166,9 +166,9 @@ export default class FeatureSwitchState {
             (layoutToUse?.overpassUrl ?? Constants.defaultOverpassUrls).join(","),
             "Point mapcomplete to a different overpass-instance. Example: https://overpass-api.de/api/interpreter"
         ).sync(
-            (param) => param.split(","),
+            (param) => param?.split(","),
             [],
-            (urls) => urls.join(",")
+            (urls) => urls?.join(",")
         )
 
         this.overpassTimeout = UIEventSource.asFloat(

Logic/Web/QueryParameters.ts

@@ -6,11 +6,11 @@ import Hash from "./Hash"
 import { Utils } from "../../Utils"
 
 export class QueryParameters {
-    static defaults = {}
+    static defaults : Record<string, string> = {}
     static documentation: Map<string, string> = new Map<string, string>()
     private static order: string[] = ["layout", "test", "z", "lat", "lon"]
-    private static _wasInitialized: Set<string> = new Set()
-    private static knownSources = {}
+    protected static readonly _wasInitialized: Set<string> = new Set()
+    protected static readonly knownSources: Record<string, UIEventSource<string>> = {}
     private static initialized = false
 
     public static GetQueryParameter(
@@ -105,14 +105,19 @@ export class QueryParameters {
         }
         if (!Utils.runningFromConsole) {
             // Don't pollute the history every time a parameter changes
-            history.replaceState(null, "", "?" + parts.join("&") + Hash.Current())
+            try{
+                history.replaceState(null, "", "?" + parts.join("&") + Hash.Current())
+            }catch(e){
+                console.error(e)
+            }
         }
     }
 
     static ClearAll() {
         for (const name in QueryParameters.knownSources) {
-            QueryParameters.knownSources[name].setData("")
+            QueryParameters.knownSources[name].setData(undefined)
         }
         QueryParameters._wasInitialized.clear()
+        QueryParameters.order = []
     }
 }