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Untuk melindungi pengguna dari HTML atau JavaScript berbahaya, Apps Script menggunakan iframe untuk membuat sandbox aplikasi web layanan HTML atau antarmuka pengguna kustom untuk Google Dokumen, Spreadsheet, dan Formulir. (Layanan HTML tidak menggunakan sandbox dalam situasi lain, seperti membuat isi email.) Sandbox menerapkan batasan pada kode sisi klien.
Mode Sandbox
Semua mode sandbox kini dihentikan kecuali IFRAME. Aplikasi yang menggunakan mode sandbox lama kini menggunakan mode IFRAME yang lebih baru secara otomatis. Jika Anda memiliki skrip yang dikembangkan menggunakan mode lama (NATIVE dan EMULATED), Anda harus mengikuti petunjuk migrasi untuk memastikan skrip tersebut berfungsi dengan baik dalam mode IFRAME.
Metode setSandboxMode kini tidak berpengaruh saat dipanggil.
Batasan dalam mode IFRAME
Mode sandbox IFRAME didasarkan pada fitur iframe sandboxing di HTML5, menggunakan kata kunci berikut:
allow-same-origin
allow-forms
allow-scripts
allow-popups
allow-downloads
allow-modals
allow-popups-to-escape-sandbox
allow-top-navigation-by-user-activation - Atribut ini hanya ditetapkan untuk project skrip mandiri.
Kata kunci allow-top-navigation, yang memungkinkan konten menavigasi konteks penjelajahan tingkat teratasnya, dibatasi dan tidak ditetapkan sebagai atribut di sandbox. Jika Anda perlu mengalihkan skrip, tambahkan link atau tombol agar pengguna dapat mengambil tindakan.
Menetapkan atribut target link
Dalam mode IFRAME, Anda perlu menyetel atribut target link ke _top atau _blank:
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-08-04 UTC."],[[["\u003cp\u003eApps Script utilizes iframes to sandbox HTML service web apps and custom interfaces for Google products, protecting users from malicious code.\u003c/p\u003e\n"],["\u003cp\u003eAll sandbox modes except \u003ccode\u003eIFRAME\u003c/code\u003e are sunset; existing scripts using older modes automatically transition to \u003ccode\u003eIFRAME\u003c/code\u003e, and developers should migrate their code accordingly.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eIFRAME\u003c/code\u003e sandbox mode, based on HTML5 iframe sandboxing, imposes limitations on client-side code with specific allowances and restrictions.\u003c/p\u003e\n"],["\u003cp\u003eTo redirect users in \u003ccode\u003eIFRAME\u003c/code\u003e mode, use links or buttons with \u003ccode\u003etarget="_top"\u003c/code\u003e or \u003ccode\u003e_blank"\u003c/code\u003e or utilize the \u003ccode\u003e<base>\u003c/code\u003e tag to override this behavior.\u003c/p\u003e\n"],["\u003cp\u003eActive content like scripts and external stylesheets within the sandboxed environment must be loaded over HTTPS to ensure security.\u003c/p\u003e\n"]]],[],null,["# HTML Service: Restrictions\n\nTo protect users from being served malicious HTML or JavaScript, Apps Script\nuses iframes to sandbox HTML-service web apps or custom user\ninterfaces for Google Docs, Sheets, and Forms. (The HTML service does not use a\nsandbox in other situations, like generating the body of an email.) The sandbox\nimposes limitations on client-side code.\n\nSandbox Mode\n------------\n\nAll sandbox modes are now sunset except for `IFRAME`. Apps using older sandbox\nmodes now use the newer `IFRAME` mode automatically. If you have scripts that\nwere developed using the older modes (`NATIVE` and `EMULATED`), you should\nfollow the [migration instructions](/apps-script/migration/iframe) to ensure\nthey function properly under the `IFRAME` mode.\n\nThe [`setSandboxMode`](/apps-script/reference/html/html-output#setSandboxMode(SandboxMode))\nmethod now has no effect when called.\n\nRestrictions in IFRAME mode\n---------------------------\n\nThe `IFRAME` sandbox mode is based on the\n[iframe sandboxing](https://html.spec.whatwg.org/#attr-iframe-sandbox) feature\nin HTML5, using the following keywords:\n\n- `allow-same-origin`\n- `allow-forms`\n- `allow-scripts`\n- `allow-popups`\n- `allow-downloads`\n- `allow-modals`\n- `allow-popups-to-escape-sandbox`\n- `allow-top-navigation-by-user-activation` - This attribute is only set for [stand-alone script projects](/apps-script/guides/standalone).\n\nThe `allow-top-navigation` keyword, which allows the content to navigate its\ntop-level browsing context, is restricted and not set as an attribute in the\nsandbox. If you need to redirect your script, add a link or a button for the\nuser to take action on instead.\n\n### Setting the link target attribute\n\nIn the `IFRAME` mode you need to set the link target attribute to either\n`_top` or `_blank`: \n\n### Code.js\n\n function doGet() {\n var template = HtmlService.createTemplateFromFile('top');\n return template.evaluate().setSandboxMode(HtmlService.SandboxMode.IFRAME);\n }\n\n### top.html\n\n \u003c!DOCTYPE html\u003e\n \u003chtml\u003e\n \u003cbody\u003e\n \u003cdiv\u003e\n \u003ca href=\"http://google.com\" target=\"_top\"\u003eClick Me!\u003c/a\u003e\n \u003c/div\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\nYou can also override this attribute using the `\u003cbase\u003e` tag within the head\nsection of the enclosing web page: \n\n \u003c!DOCTYPE html\u003e\n \u003chtml\u003e\n \u003chead\u003e\n \u003cbase target=\"_top\"\u003e\n \u003c/head\u003e\n \u003cbody\u003e\n \u003cdiv\u003e\n \u003ca href=\"http://google.com\"\u003eClick Me!\u003c/a\u003e\n \u003c/div\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n### HTTPS required for active content\n\n[\"Active\" content](https://developer.mozilla.org/en-US/docs/Security/MixedContent#Mixed_active_content)\nlike scripts, external stylesheets, and XmlHttpRequests must be loaded over\nHTTPS, not HTTP."]]
