diff --git a/src/rageshake/rageshake.ts b/src/rageshake/rageshake.ts
index 9238e230dd..d7ff981f77 100644
--- a/src/rageshake/rageshake.ts
+++ b/src/rageshake/rageshake.ts
@@ -64,15 +64,17 @@ export class ConsoleLogger {
             warn: "W",
             error: "E",
         } as const;
-        Object.keys(consoleFunctionsToLevels).forEach((fnName: keyof typeof consoleFunctionsToLevels) => {
-            const level = consoleFunctionsToLevels[fnName];
-            const originalFn = consoleObj[fnName].bind(consoleObj);
-            this.originalFunctions[fnName] = originalFn;
-            consoleObj[fnName] = (...args) => {
-                this.log(level, ...args);
-                originalFn(...args);
-            };
-        });
+        (Object.keys(consoleFunctionsToLevels) as [keyof typeof consoleFunctionsToLevels]).forEach(
+            (fnName: keyof typeof consoleFunctionsToLevels) => {
+                const level = consoleFunctionsToLevels[fnName];
+                const originalFn = consoleObj[fnName].bind(consoleObj);
+                this.originalFunctions[fnName] = originalFn;
+                consoleObj[fnName] = (...args) => {
+                    this.log(level, ...args);
+                    originalFn(...args);
+                };
+            },
+        );
     }
 
     public bypassRageshake(fnName: LogFunctionName, ...args: (Error | DOMException | object | string)[]): void {
@@ -261,6 +263,8 @@ export class IndexedDBLogStore {
         // Returns: a string representing the concatenated logs for this ID.
         // Stops adding log fragments when the size exceeds maxSize
         function fetchLogs(id: string, maxSize: number): Promise<string> {
+            if (!db) return Promise.reject("DB unavailable");
+
             const objectStore = db.transaction("logs", "readonly").objectStore("logs");
 
             return new Promise((resolve, reject) => {
@@ -287,6 +291,8 @@ export class IndexedDBLogStore {
 
         // Returns: A sorted array of log IDs. (newest first)
         function fetchLogIds(): Promise<string[]> {
+            if (!db) return Promise.reject("DB unavailable");
+
             // To gather all the log IDs, query for all records in logslastmod.
             const o = db.transaction("logslastmod", "readonly").objectStore("logslastmod");
             return selectQuery(o, undefined, (cursor) => {
@@ -305,6 +311,8 @@ export class IndexedDBLogStore {
         }
 
         function deleteLogs(id: string): Promise<void> {
+            if (!db) return Promise.reject("DB unavailable");
+
             return new Promise<void>((resolve, reject) => {
                 const txn = db.transaction(["logs", "logslastmod"], "readwrite");
                 const o = txn.objectStore("logs");
diff --git a/src/rageshake/submit-rageshake.ts b/src/rageshake/submit-rageshake.ts
index 4fc22bc3c0..f1926b6ca1 100644
--- a/src/rageshake/submit-rageshake.ts
+++ b/src/rageshake/submit-rageshake.ts
@@ -88,7 +88,7 @@ async function collectBugReport(opts: IOpts = {}, gzipLogs = true): Promise<Form
                 keys.push(`curve25519:${client.getDeviceCurve25519Key()}`);
             }
             body.append("device_keys", keys.join(", "));
-            body.append("cross_signing_key", client.getCrossSigningId());
+            body.append("cross_signing_key", client.getCrossSigningId() ?? "n/a");
 
             // add cross-signing status information
             const crossSigning = client.crypto.crossSigningInfo;
@@ -99,7 +99,7 @@ async function collectBugReport(opts: IOpts = {}, gzipLogs = true): Promise<Form
                 "cross_signing_supported_by_hs",
                 String(await client.doesServerSupportUnstableFeature("org.matrix.e2e_cross_signing")),
             );
-            body.append("cross_signing_key", crossSigning.getId());
+            body.append("cross_signing_key", crossSigning.getId() ?? "n/a");
             body.append(
                 "cross_signing_privkey_in_secret_storage",
                 String(!!(await crossSigning.isStoredInSecretStorage(secretStorage))),
@@ -108,15 +108,15 @@ async function collectBugReport(opts: IOpts = {}, gzipLogs = true): Promise<Form
             const pkCache = client.getCrossSigningCacheCallbacks();
             body.append(
                 "cross_signing_master_privkey_cached",
-                String(!!(pkCache && (await pkCache.getCrossSigningKeyCache("master")))),
+                String(!!(pkCache && (await pkCache?.getCrossSigningKeyCache?.("master")))),
             );
             body.append(
                 "cross_signing_self_signing_privkey_cached",
-                String(!!(pkCache && (await pkCache.getCrossSigningKeyCache("self_signing")))),
+                String(!!(pkCache && (await pkCache?.getCrossSigningKeyCache?.("self_signing")))),
             );
             body.append(
                 "cross_signing_user_signing_privkey_cached",
-                String(!!(pkCache && (await pkCache.getCrossSigningKeyCache("user_signing")))),
+                String(!!(pkCache && (await pkCache?.getCrossSigningKeyCache?.("user_signing")))),
             );
 
             body.append("secret_storage_ready", String(await client.isSecretStorageReady()));
@@ -163,14 +163,14 @@ async function collectBugReport(opts: IOpts = {}, gzipLogs = true): Promise<Form
             body.append("storageManager_usage", String(estimate.usage));
             if (estimate.usageDetails) {
                 Object.keys(estimate.usageDetails).forEach((k) => {
-                    body.append(`storageManager_usage_${k}`, String(estimate.usageDetails[k]));
+                    body.append(`storageManager_usage_${k}`, String(estimate.usageDetails![k]));
                 });
             }
         } catch (e) {}
     }
 
     if (window.Modernizr) {
-        const missingFeatures = Object.keys(window.Modernizr).filter(
+        const missingFeatures = (Object.keys(window.Modernizr) as [keyof ModernizrStatic]).filter(
             (key: keyof ModernizrStatic) => window.Modernizr[key] === false,
         );
         if (missingFeatures.length > 0) {
@@ -253,7 +253,7 @@ export async function downloadBugReport(opts: IOpts = {}): Promise<void> {
             await new Promise<void>((resolve) => {
                 const reader = new FileReader();
                 reader.addEventListener("loadend", (ev) => {
-                    tape.append(`log-${i++}.log`, new TextDecoder().decode(ev.target.result as ArrayBuffer));
+                    tape.append(`log-${i++}.log`, new TextDecoder().decode(reader.result as ArrayBuffer));
                     resolve();
                 });
                 reader.readAsArrayBuffer(value as Blob);
@@ -302,14 +302,18 @@ export async function submitFeedback(
 
     body.append("app", "element-web");
     body.append("version", version || "UNKNOWN");
-    body.append("platform", PlatformPeg.get().getHumanReadableName());
-    body.append("user_id", MatrixClientPeg.get()?.getUserId());
+    body.append("platform", PlatformPeg.get()?.getHumanReadableName() ?? "n/a");
+    body.append("user_id", MatrixClientPeg.get()?.getUserId() ?? "n/a");
 
     for (const k in extraData) {
         body.append(k, JSON.stringify(extraData[k]));
     }
 
-    await submitReport(SdkConfig.get().bug_report_endpoint_url, body, () => {});
+    const bugReportEndpointUrl = SdkConfig.get().bug_report_endpoint_url;
+
+    if (bugReportEndpointUrl) {
+        await submitReport(bugReportEndpointUrl, body, () => {});
+    }
 }
 
 function submitReport(endpoint: string, body: FormData, progressCallback: (str: string) => void): Promise<string> {