diff --git a/src/account/Template.tsx b/src/account/Template.tsx
index b6edc233..206cebc0 100644
--- a/src/account/Template.tsx
+++ b/src/account/Template.tsx
@@ -2,14 +2,12 @@ import { useEffect } from "react";
 import { clsx } from "keycloakify/tools/clsx";
 import { type TemplateProps } from "keycloakify/account/TemplateProps";
 import { useGetClassName } from "keycloakify/account/lib/useGetClassName";
-import { createUseInsertLinkTags } from "keycloakify/tools/useInsertLinkTags";
+import { useInsertLinkTags } from "keycloakify/tools/useInsertLinkTags";
 import { useSetClassName } from "keycloakify/tools/useSetClassName";
 import type { KcContext } from "./kcContext";
 import type { I18n } from "./i18n";
 import { assert } from "keycloakify/tools/assert";
 
-const { useInsertLinkTags } = createUseInsertLinkTags();
-
 export default function Template(props: TemplateProps<KcContext, I18n>) {
     const { kcContext, i18n, doUseDefaultCss, active, classes, children } = props;
 
@@ -46,6 +44,7 @@ export default function Template(props: TemplateProps<KcContext, I18n>) {
     }, []);
 
     const { areAllStyleSheetsLoaded } = useInsertLinkTags({
+        componentOrHookName: "Template",
         hrefs: !doUseDefaultCss
             ? []
             : [
diff --git a/src/account/kcContext/getKcContextMock.ts b/src/account/kcContext/getKcContextMock.ts
index 23b32d03..0735bb81 100644
--- a/src/account/kcContext/getKcContextMock.ts
+++ b/src/account/kcContext/getKcContextMock.ts
@@ -1,5 +1,5 @@
 import type { ExtendKcContext, KcContext as KcContextBase } from "./KcContext";
-import type { LoginThemePageId } from "keycloakify/bin/shared/constants";
+import type { AccountThemePageId } from "keycloakify/bin/shared/constants";
 import type { DeepPartial } from "keycloakify/tools/DeepPartial";
 import { deepAssign } from "keycloakify/tools/deepAssign";
 import { structuredCloneButFunctions } from "keycloakify/tools/structuredCloneButFunctions";
@@ -18,7 +18,7 @@ export function createGetKcContextMock<
     overrides?: DeepPartial<KcContextExtraProperties & KcContextBase.Common>;
     overridesPerPage?: {
         [PageId in
-            | LoginThemePageId
+            | AccountThemePageId
             | keyof KcContextExtraPropertiesPerPage]?: DeepPartial<
             Extract<
                 ExtendKcContext<
@@ -43,7 +43,7 @@ export function createGetKcContextMock<
     >;
 
     function getKcContextMock<
-        PageId extends LoginThemePageId | keyof KcContextExtraPropertiesPerPage
+        PageId extends AccountThemePageId | keyof KcContextExtraPropertiesPerPage
     >(params: {
         pageId: PageId;
         overrides?: DeepPartial<Extract<KcContext, { pageId: PageId }>>;
diff --git a/src/login/Template.tsx b/src/login/Template.tsx
index 4d8ad7b8..8a31fbfe 100644
--- a/src/login/Template.tsx
+++ b/src/login/Template.tsx
@@ -3,15 +3,12 @@ import { assert } from "keycloakify/tools/assert";
 import { clsx } from "keycloakify/tools/clsx";
 import { type TemplateProps } from "keycloakify/login/TemplateProps";
 import { useGetClassName } from "keycloakify/login/lib/useGetClassName";
-import { createUseInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
-import { createUseInsertLinkTags } from "keycloakify/tools/useInsertLinkTags";
+import { useInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
+import { useInsertLinkTags } from "keycloakify/tools/useInsertLinkTags";
 import { useSetClassName } from "keycloakify/tools/useSetClassName";
 import type { KcContext } from "./kcContext";
 import type { I18n } from "./i18n";
 
-const { useInsertLinkTags } = createUseInsertLinkTags();
-const { useInsertScriptTags } = createUseInsertScriptTags();
-
 export default function Template(props: TemplateProps<KcContext, I18n>) {
     const {
         displayInfo = false,
@@ -63,6 +60,7 @@ export default function Template(props: TemplateProps<KcContext, I18n>) {
     }, []);
 
     const { areAllStyleSheetsLoaded } = useInsertLinkTags({
+        componentOrHookName: "Template",
         hrefs: !doUseDefaultCss
             ? []
             : [
@@ -75,6 +73,7 @@ export default function Template(props: TemplateProps<KcContext, I18n>) {
     });
 
     const { insertScriptTags } = useInsertScriptTags({
+        componentOrHookName: "Template",
         scriptTags: [
             {
                 type: "module",
diff --git a/src/login/lib/useDownloadTerms.ts b/src/login/lib/useDownloadTerms.ts
index a90c46b1..c1b60e0c 100644
--- a/src/login/lib/useDownloadTerms.ts
+++ b/src/login/lib/useDownloadTerms.ts
@@ -1,14 +1,11 @@
-import { useEffect } from "react";
-import { memoize } from "keycloakify/tools/memoize";
 import { fallbackLanguageTag } from "keycloakify/login/i18n/i18n";
-import { useConst } from "keycloakify/tools/useConst";
-import { useConstCallback } from "keycloakify/tools/useConstCallback";
 import { assert } from "tsafe/assert";
 import {
     createStatefulObservable,
     useRerenderOnChange
 } from "keycloakify/tools/StatefulObservable";
 import { KcContext } from "../kcContext";
+import { useOnFistMount } from "keycloakify/tools/useOnFirstMount";
 
 const obsTermsMarkdown = createStatefulObservable<string | undefined>(() => undefined);
 
@@ -27,29 +24,18 @@ export function useDownloadTerms(params: {
     kcContext: KcContextLike;
     downloadTermMarkdown: (params: { currentLanguageTag: string }) => Promise<string>;
 }) {
-    const { kcContext } = params;
+    const { kcContext, downloadTermMarkdown } = params;
 
-    const { downloadTermMarkdownMemoized } = (function useClosure() {
-        const { downloadTermMarkdown } = params;
-
-        const downloadTermMarkdownConst = useConstCallback(downloadTermMarkdown);
-
-        const downloadTermMarkdownMemoized = useConst(() =>
-            memoize((currentLanguageTag: string) =>
-                downloadTermMarkdownConst({ currentLanguageTag })
-            )
-        );
-
-        return { downloadTermMarkdownMemoized };
-    })();
-
-    useEffect(() => {
+    useOnFistMount(async () => {
         if (kcContext.pageId === "terms.ftl" || kcContext.termsAcceptanceRequired) {
-            downloadTermMarkdownMemoized(
-                kcContext.locale?.currentLanguageTag ?? fallbackLanguageTag
-            ).then(thermMarkdown => (obsTermsMarkdown.current = thermMarkdown));
+            const termsMarkdown = await downloadTermMarkdown({
+                currentLanguageTag:
+                    kcContext.locale?.currentLanguageTag ?? fallbackLanguageTag
+            });
+
+            obsTermsMarkdown.current = termsMarkdown;
         }
-    }, []);
+    });
 }
 
 export function useTermsMarkdown() {
diff --git a/src/login/lib/useGetClassName.ts b/src/login/lib/useGetClassName.ts
index 3a845baa..16aff202 100644
--- a/src/login/lib/useGetClassName.ts
+++ b/src/login/lib/useGetClassName.ts
@@ -3,6 +3,7 @@ import type { ClassKey } from "keycloakify/login/TemplateProps";
 
 export const { useGetClassName } = createUseClassName<ClassKey>({
     defaultClasses: {
+        kcHtmlClass: "login-pf",
         kcBodyClass: undefined,
         kcHeaderWrapperClass: undefined,
         kcLocaleWrapperClass: undefined,
@@ -54,7 +55,6 @@ export const { useGetClassName } = createUseClassName<ClassKey>({
         kcLogoLink: "http://www.keycloak.org",
         kcContainerClass: "container-fluid",
         kcSelectAuthListItemTitle: "select-auth-box-paragraph",
-        kcHtmlClass: "login-pf",
         kcLoginOTPListItemTitleClass: "pf-c-tile__title",
         "kcLogoIdP-openshift-v4": "pf-icon pf-icon-openshift",
         kcWebAuthnUnknownIcon: "pficon pficon-key unknown-transport-class",
diff --git a/src/login/lib/useUserProfileForm.tsx b/src/login/lib/useUserProfileForm.tsx
index 3ba2570e..f2b35a80 100644
--- a/src/login/lib/useUserProfileForm.tsx
+++ b/src/login/lib/useUserProfileForm.tsx
@@ -8,7 +8,7 @@ import { emailRegexp } from "keycloakify/tools/emailRegExp";
 import type { KcContext, PasswordPolicies } from "keycloakify/login/kcContext/KcContext";
 import { assert, type Equals } from "tsafe/assert";
 import { formatNumber } from "keycloakify/tools/formatNumber";
-import { createUseInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
+import { useInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
 import { structuredCloneButFunctions } from "keycloakify/tools/structuredCloneButFunctions";
 import type { I18n } from "../i18n";
 
@@ -103,12 +103,11 @@ namespace internal {
     };
 }
 
-const { useInsertScriptTags } = createUseInsertScriptTags();
-
 export function useUserProfileForm(params: ParamsOfUseUserProfileForm): ReturnTypeOfUseUserProfileForm {
     const { kcContext, i18n, doMakeUserConfirmPassword } = params;
 
     const { insertScriptTags } = useInsertScriptTags({
+        componentOrHookName: "useUserProfileForm",
         scriptTags: Object.keys(kcContext.profile?.html5DataAnnotations ?? {})
             .filter(key => key !== "kcMultivalued" && key !== "kcNumberFormat") // NOTE: Keycloakify handles it.
             .map(key => ({
diff --git a/src/login/pages/LoginRecoveryAuthnCodeConfig.tsx b/src/login/pages/LoginRecoveryAuthnCodeConfig.tsx
index 3bc80936..1d4f9c12 100644
--- a/src/login/pages/LoginRecoveryAuthnCodeConfig.tsx
+++ b/src/login/pages/LoginRecoveryAuthnCodeConfig.tsx
@@ -2,12 +2,10 @@ import { useEffect } from "react";
 import { clsx } from "keycloakify/tools/clsx";
 import type { PageProps } from "keycloakify/login/pages/PageProps";
 import { useGetClassName } from "keycloakify/login/lib/useGetClassName";
-import { createUseInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
+import { useInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
 import type { KcContext } from "../kcContext";
 import type { I18n } from "../i18n";
 
-const { useInsertScriptTags } = createUseInsertScriptTags();
-
 export default function LoginRecoveryAuthnCodeConfig(props: PageProps<Extract<KcContext, { pageId: "login-recovery-authn-code-config.ftl" }>, I18n>) {
     const { kcContext, i18n, doUseDefaultCss, Template, classes } = props;
 
@@ -21,6 +19,7 @@ export default function LoginRecoveryAuthnCodeConfig(props: PageProps<Extract<Kc
     const { msg, msgStr } = i18n;
 
     const { insertScriptTags } = useInsertScriptTags({
+        componentOrHookName: "LoginRecoveryAuthnCodeConfig",
         scriptTags: [
             {
                 type: "text/javascript",
diff --git a/src/login/pages/WebauthnAuthenticate.tsx b/src/login/pages/WebauthnAuthenticate.tsx
index 76c18c33..6471c94c 100644
--- a/src/login/pages/WebauthnAuthenticate.tsx
+++ b/src/login/pages/WebauthnAuthenticate.tsx
@@ -3,12 +3,10 @@ import { clsx } from "keycloakify/tools/clsx";
 import type { PageProps } from "keycloakify/login/pages/PageProps";
 import { useGetClassName } from "keycloakify/login/lib/useGetClassName";
 import { assert } from "tsafe/assert";
-import { createUseInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
+import { useInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
 import type { KcContext } from "../kcContext";
 import type { I18n } from "../i18n";
 
-const { useInsertScriptTags } = createUseInsertScriptTags();
-
 export default function WebauthnAuthenticate(props: PageProps<Extract<KcContext, { pageId: "webauthn-authenticate.ftl" }>, I18n>) {
     const { kcContext, i18n, doUseDefaultCss, Template, classes } = props;
 
@@ -31,6 +29,7 @@ export default function WebauthnAuthenticate(props: PageProps<Extract<KcContext,
     const { msg, msgStr, advancedMsg } = i18n;
 
     const { insertScriptTags } = useInsertScriptTags({
+        componentOrHookName: "WebauthnAuthenticate",
         scriptTags: [
             {
                 type: "text/javascript",
diff --git a/src/login/pages/WebauthnRegister.tsx b/src/login/pages/WebauthnRegister.tsx
index f1fe774d..8fa8cf28 100644
--- a/src/login/pages/WebauthnRegister.tsx
+++ b/src/login/pages/WebauthnRegister.tsx
@@ -3,12 +3,10 @@ import { clsx } from "keycloakify/tools/clsx";
 import type { PageProps } from "keycloakify/login/pages/PageProps";
 import { useGetClassName } from "keycloakify/login/lib/useGetClassName";
 import { assert } from "tsafe/assert";
-import { createUseInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
+import { useInsertScriptTags } from "keycloakify/tools/useInsertScriptTags";
 import type { KcContext } from "../kcContext";
 import type { I18n } from "../i18n";
 
-const { useInsertScriptTags } = createUseInsertScriptTags();
-
 export default function WebauthnRegister(props: PageProps<Extract<KcContext, { pageId: "webauthn-register.ftl" }>, I18n>) {
     const { kcContext, i18n, doUseDefaultCss, Template, classes } = props;
 
@@ -35,6 +33,7 @@ export default function WebauthnRegister(props: PageProps<Extract<KcContext, { p
     const { msg, msgStr } = i18n;
 
     const { insertScriptTags } = useInsertScriptTags({
+        componentOrHookName: "WebauthnRegister",
         scriptTags: [
             {
                 type: "text/javascript",
diff --git a/src/tools/StatefulObservable/hooks/useRerenderOnChange.ts b/src/tools/StatefulObservable/hooks/useRerenderOnChange.ts
index c6045fc4..d32cb70c 100644
--- a/src/tools/StatefulObservable/hooks/useRerenderOnChange.ts
+++ b/src/tools/StatefulObservable/hooks/useRerenderOnChange.ts
@@ -5,15 +5,15 @@ import type { StatefulObservable } from "../StatefulObservable";
 /**
  * Equivalent of https://docs.evt.land/api/react-hooks
  * */
-export function useRerenderOnChange($: StatefulObservable<unknown>): void {
+export function useRerenderOnChange(obs: StatefulObservable<unknown>): void {
     //NOTE: We use function in case the state is a function
-    const [, setCurrent] = useState(() => $.current);
+    const [, setCurrent] = useState(() => obs.current);
 
     useObservable(
         ({ registerSubscription }) => {
-            const subscription = $.subscribe(current => setCurrent(() => current));
+            const subscription = obs.subscribe(current => setCurrent(() => current));
             registerSubscription(subscription);
         },
-        [$]
+        [obs]
     );
 }
diff --git a/src/tools/memoize.ts b/src/tools/memoize.ts
deleted file mode 100644
index 689720dc..00000000
--- a/src/tools/memoize.ts
+++ /dev/null
@@ -1,55 +0,0 @@
-type SimpleType = number | string | boolean | null | undefined;
-type FuncWithSimpleParams<T extends SimpleType[], R> = (...args: T) => R;
-
-export function memoize<T extends SimpleType[], R>(
-    fn: FuncWithSimpleParams<T, R>,
-    options?: {
-        argsLength?: number;
-        max?: number;
-    }
-): FuncWithSimpleParams<T, R> {
-    const cache = new Map<string, ReturnType<FuncWithSimpleParams<T, R>>>();
-
-    const { argsLength = fn.length, max = Infinity } = options ?? {};
-
-    return ((...args: Parameters<FuncWithSimpleParams<T, R>>) => {
-        const key = JSON.stringify(
-            args
-                .slice(0, argsLength)
-                .map(v => {
-                    if (v === null) {
-                        return "null";
-                    }
-                    if (v === undefined) {
-                        return "undefined";
-                    }
-                    switch (typeof v) {
-                        case "number":
-                            return `number-${v}`;
-                        case "string":
-                            return `string-${v}`;
-                        case "boolean":
-                            return `boolean-${v ? "true" : "false"}`;
-                    }
-                })
-                .join("-sIs9sAslOdeWlEdIos3-")
-        );
-
-        if (cache.has(key)) {
-            return cache.get(key);
-        }
-
-        if (max === cache.size) {
-            for (const key of cache.keys()) {
-                cache.delete(key);
-                break;
-            }
-        }
-
-        const value = fn(...args);
-
-        cache.set(key, value);
-
-        return value;
-    }) as any;
-}
diff --git a/src/tools/useInsertLinkTags.ts b/src/tools/useInsertLinkTags.ts
index dd3d2f2d..d34bf716 100644
--- a/src/tools/useInsertLinkTags.ts
+++ b/src/tools/useInsertLinkTags.ts
@@ -1,8 +1,9 @@
-import { useEffect, useState } from "react";
-import {
-    createStatefulObservable,
-    useRerenderOnChange
-} from "keycloakify/tools/StatefulObservable";
+import { useEffect, useReducer } from "react";
+import { useConst } from "keycloakify/tools/useConst";
+import { id } from "tsafe/id";
+import { useOnFistMount } from "keycloakify/tools/useOnFirstMount";
+
+const alreadyMountedComponentOrHookNames = new Set<string>();
 
 /**
  * NOTE: The component that use this hook can only be mounded once!
@@ -10,28 +11,37 @@ import {
  * If it's mounted again the page will be reloaded.
  * This simulates the behavior of a server rendered page that imports css stylesheet in the head.
  */
-export function createUseInsertLinkTags() {
-    let isFistMount = true;
+export function useInsertLinkTags(params: {
+    componentOrHookName: string;
+    hrefs: string[];
+}) {
+    const { hrefs, componentOrHookName } = params;
 
-    const obsAreAllStyleSheetsLoaded = createStatefulObservable(() => false);
+    useOnFistMount(() => {
+        const isAlreadyMounted =
+            alreadyMountedComponentOrHookNames.has(componentOrHookName);
 
-    function useInsertLinkTags(params: { hrefs: string[] }) {
-        const { hrefs } = params;
+        if (isAlreadyMounted) {
+            window.location.reload();
+            return;
+        }
 
-        useRerenderOnChange(obsAreAllStyleSheetsLoaded);
+        alreadyMountedComponentOrHookNames.add(componentOrHookName);
+    });
 
-        useState(() => {
-            if (!isFistMount) {
-                window.location.reload();
-                return;
-            }
+    const [areAllStyleSheetsLoaded, setAllStyleSheetsLoaded] = useReducer(
+        () => true,
+        false
+    );
 
-            isFistMount = false;
-        });
+    const refPrAllStyleSheetLoaded = useConst(() => ({
+        current: id<Promise<void> | undefined>(undefined)
+    }));
 
-        useEffect(() => {
-            let isActive = true;
+    useEffect(() => {
+        let isActive = true;
 
+        (refPrAllStyleSheetLoaded.current ??= (async () => {
             let lastMountedHtmlElement: HTMLLinkElement | undefined = undefined;
 
             const prs: Promise<void>[] = [];
@@ -58,20 +68,19 @@ export function createUseInsertLinkTags() {
                 lastMountedHtmlElement = htmlElement;
             }
 
-            Promise.all(prs).then(() => {
-                if (!isActive) {
-                    return;
-                }
-                obsAreAllStyleSheetsLoaded.current = true;
-            });
+            await Promise.all(prs);
+        })()).then(() => {
+            if (!isActive) {
+                return;
+            }
 
-            return () => {
-                isActive = false;
-            };
-        }, []);
+            setAllStyleSheetsLoaded();
+        });
 
-        return { areAllStyleSheetsLoaded: obsAreAllStyleSheetsLoaded.current };
-    }
+        return () => {
+            isActive = false;
+        };
+    }, []);
 
-    return { useInsertLinkTags };
+    return { areAllStyleSheetsLoaded };
 }
diff --git a/src/tools/useInsertScriptTags.ts b/src/tools/useInsertScriptTags.ts
index 22b4b558..2b6f03da 100644
--- a/src/tools/useInsertScriptTags.ts
+++ b/src/tools/useInsertScriptTags.ts
@@ -1,5 +1,6 @@
-import { useCallback, useState } from "react";
+import { useCallback } from "react";
 import { assert } from "tsafe/assert";
+import { useOnFistMount } from "keycloakify/tools/useOnFirstMount";
 
 export type ScriptTag = ScriptTag.TextContent | ScriptTag.Src;
 
@@ -16,80 +17,86 @@ export namespace ScriptTag {
     };
 }
 
+const alreadyMountedComponentOrHookNames = new Set<string>();
+
 /**
  * NOTE: The component that use this hook can only be mounded once!
- * And can'r rerender with different scriptTags.
+ * And can't rerender with different scriptTags.
  * If it's mounted again the page will be reloaded.
  * This simulates the behavior of a server rendered page that imports javascript in the head.
+ *
+ * The returned function is supposed to be called in a useEffect and
+ * will not download the scripts multiple times event if called more than once (react strict mode).
+ *
  */
-export function createUseInsertScriptTags() {
+export function useInsertScriptTags(params: {
+    componentOrHookName: string;
+    scriptTags: ScriptTag[];
+}) {
+    const { scriptTags, componentOrHookName } = params;
+
+    useOnFistMount(() => {
+        const isAlreadyMounted =
+            alreadyMountedComponentOrHookNames.has(componentOrHookName);
+
+        if (isAlreadyMounted) {
+            window.location.reload();
+            return;
+        }
+
+        alreadyMountedComponentOrHookNames.add(componentOrHookName);
+    });
+
     let areScriptsInserted = false;
 
-    let isFistMount = true;
+    const insertScriptTags = useCallback(() => {
+        if (areScriptsInserted) {
+            return;
+        }
 
-    function useInsertScriptTags(params: { scriptTags: ScriptTag[] }) {
-        const { scriptTags } = params;
-
-        useState(() => {
-            if (!isFistMount) {
-                window.location.reload();
-                return;
-            }
-
-            isFistMount = false;
-        });
-
-        const insertScriptTags = useCallback(() => {
-            if (areScriptsInserted) {
-                return;
-            }
-
-            scriptTags.forEach(scriptTag => {
-                // NOTE: Avoid loading same script twice. (Like jQuery for example)
-                {
-                    const scripts = document.getElementsByTagName("script");
-                    for (let i = 0; i < scripts.length; i++) {
-                        const script = scripts[i];
-                        if ("textContent" in scriptTag) {
-                            if (script.textContent === scriptTag.textContent) {
-                                return;
-                            }
-                            continue;
-                        }
-                        if ("src" in scriptTag) {
-                            if (script.getAttribute("src") === scriptTag.src) {
-                                return;
-                            }
-                            continue;
-                        }
-                        assert(false);
-                    }
-                }
-
-                const htmlElement = document.createElement("script");
-
-                htmlElement.type = scriptTag.type;
-
-                (() => {
+        scriptTags.forEach(scriptTag => {
+            // NOTE: Avoid loading same script twice. (Like jQuery for example)
+            {
+                const scripts = document.getElementsByTagName("script");
+                for (let i = 0; i < scripts.length; i++) {
+                    const script = scripts[i];
                     if ("textContent" in scriptTag) {
-                        htmlElement.textContent = scriptTag.textContent;
-                        return;
+                        if (script.textContent === scriptTag.textContent) {
+                            return;
+                        }
+                        continue;
                     }
                     if ("src" in scriptTag) {
-                        htmlElement.src = scriptTag.src;
-                        return;
+                        if (script.getAttribute("src") === scriptTag.src) {
+                            return;
+                        }
+                        continue;
                     }
                     assert(false);
-                })();
+                }
+            }
 
-                document.head.appendChild(htmlElement);
-            });
+            const htmlElement = document.createElement("script");
 
-            areScriptsInserted = true;
-        }, []);
+            htmlElement.type = scriptTag.type;
 
-        return { insertScriptTags };
-    }
+            (() => {
+                if ("textContent" in scriptTag) {
+                    htmlElement.textContent = scriptTag.textContent;
+                    return;
+                }
+                if ("src" in scriptTag) {
+                    htmlElement.src = scriptTag.src;
+                    return;
+                }
+                assert(false);
+            })();
 
-    return { useInsertScriptTags };
+            document.head.appendChild(htmlElement);
+        });
+
+        areScriptsInserted = true;
+    }, []);
+
+    return { insertScriptTags };
 }
diff --git a/src/tools/useOnFirstMount.ts b/src/tools/useOnFirstMount.ts
new file mode 100644
index 00000000..0fde941c
--- /dev/null
+++ b/src/tools/useOnFirstMount.ts
@@ -0,0 +1,18 @@
+import { useEffect } from "react";
+import { useConst } from "powerhooks/useConst";
+import { id } from "tsafe/id";
+
+/** Callback is guaranteed to be call only once per component mount event in strict mode */
+export function useOnFistMount(callback: () => void) {
+    const refHasCallbackBeenCalled = useConst(() => ({ current: id<boolean>(false) }));
+
+    useEffect(() => {
+        if (refHasCallbackBeenCalled.current) {
+            return;
+        }
+
+        callback();
+
+        refHasCallbackBeenCalled.current = true;
+    }, []);
+}
diff --git a/stories/account/KcApp.tsx b/stories/account/KcApp.tsx
index 6c9fc4ab..aee7cad3 100644
--- a/stories/account/KcApp.tsx
+++ b/stories/account/KcApp.tsx
@@ -1,9 +1,8 @@
-import React, { lazy, Suspense } from "react";
+import React from "react";
 import Fallback from "../../dist/account";
 import type { KcContext } from "./kcContext";
 import { useI18n } from "./i18n";
-
-const DefaultTemplate = lazy(() => import("../../dist/account/Template"));
+import Template from "../../dist/account/Template";
 
 export default function KcApp(props: { kcContext: KcContext }) {
     const { kcContext } = props;
@@ -14,14 +13,5 @@ export default function KcApp(props: { kcContext: KcContext }) {
         return null;
     }
 
-    return (
-        <Suspense>
-            {(() => {
-                switch (kcContext.pageId) {
-                    default:
-                        return <Fallback {...{ kcContext, i18n }} Template={DefaultTemplate} doUseDefaultCss={true} />;
-                }
-            })()}
-        </Suspense>
-    );
+    return <Fallback {...{ kcContext, i18n }} Template={Template} doUseDefaultCss={true} />;
 }
diff --git a/stories/account/createPageStory.tsx b/stories/account/createPageStory.tsx
index add3e5f6..faf98f8a 100644
--- a/stories/account/createPageStory.tsx
+++ b/stories/account/createPageStory.tsx
@@ -15,7 +15,11 @@ export function createPageStory<PageId extends KcContext["pageId"]>(params: { pa
             overrides
         });
 
-        return <KcApp kcContext={kcContextMock} />;
+        return (
+            <React.StrictMode>
+                <KcApp kcContext={kcContextMock} />
+            </React.StrictMode>
+        );
     }
 
     return { PageStory };
diff --git a/stories/login/KcApp.tsx b/stories/login/KcApp.tsx
index b7c40352..78be89d3 100644
--- a/stories/login/KcApp.tsx
+++ b/stories/login/KcApp.tsx
@@ -1,4 +1,4 @@
-import React, { lazy, Suspense } from "react";
+import React from "react";
 import Fallback from "../../dist/login";
 import type { KcContext } from "./kcContext";
 import { useI18n } from "./i18n";
@@ -35,23 +35,14 @@ export default function KcApp(props: { kcContext: KcContext }) {
     }
 
     return (
-        <Suspense>
-            {(() => {
-                switch (kcContext.pageId) {
-                    default:
-                        return (
-                            <Fallback
-                                {...{
-                                    kcContext,
-                                    i18n,
-                                    Template,
-                                    UserProfileFormFields
-                                }}
-                                doUseDefaultCss={true}
-                            />
-                        );
-                }
-            })()}
-        </Suspense>
+        <Fallback
+            {...{
+                kcContext,
+                i18n,
+                Template,
+                UserProfileFormFields
+            }}
+            doUseDefaultCss={true}
+        />
     );
 }
diff --git a/stories/login/createPageStory.tsx b/stories/login/createPageStory.tsx
index add3e5f6..faf98f8a 100644
--- a/stories/login/createPageStory.tsx
+++ b/stories/login/createPageStory.tsx
@@ -15,7 +15,11 @@ export function createPageStory<PageId extends KcContext["pageId"]>(params: { pa
             overrides
         });
 
-        return <KcApp kcContext={kcContextMock} />;
+        return (
+            <React.StrictMode>
+                <KcApp kcContext={kcContextMock} />
+            </React.StrictMode>
+        );
     }
 
     return { PageStory };