Mask Vue SFCs in the browser
Extract only the SFC needed for consultation into a copy for sharing, remove secret values before entering them, then replace component names, identifiers, and strings. Compare the result with the original code and visually check template, script, style, and parent-child contracts.
Mask Vue code before sharingConclusion
Because the same names connect template, script, and style in Vue SFCs, remove Secrets first, transform all three layers together, and check the differences.
Record the Vue, Pinia, and Build Tool Version, reproduction steps, expected and actual results, together with fictional Data.
Diagnostic table to check in one minute
| Symptoms to observe | Main causes | Where to check first |
|---|---|---|
| Delete unnecessary SFCs and secret values first | Remove API URLs, bearer tokens, cookies, and customer information before input instead of relying on replacement. | Minimal reproduction SFC |
| Mask the minimal reproduction in the browser | route, Pinia store, business Components, display text, and CSS classes can also be clues. | Vue APIs / expressions |
| Compare template, script, style, and parent-child contracts | Check import sources, lang="ts", macros, directives, and ARIA attributes | Parent-child contract and DOM |
Reproduce the symptom with a minimal SFC
Without using a real domain, token, or customer information, reproduce only one symptom with the Vue 3 Composition API and script setup lang="ts".
<template>
<UserProfileForm :user-id="userId" @saved="handleSaved" />
</template>
<script setup lang="ts">
import UserProfileForm from "./UserProfileForm.vue"
const props = defineProps<{ userId: string }>()
const emit = defineEmits<{ saved: [id: string] }>()
const endpoint = "https://example.test/api/users"
function handleSaved(id: string) { emit("saved", id) }
</script>
<style scoped>
.user-profile { color: #2563eb; }
</style>
Isolate Vue-specific causes
- Remove API URLs, bearer tokens, cookies, and customer information before input instead of relying on replacement.
- route, Pinia store, business Components, display text, and CSS classes can also be clues.
- Check import sources, lang="ts", macros, directives, and ARIA attributes
- Share only the minimum necessary information for each GitHub Issue, chat, or Q&A site
Check after the fix
- Apply "mask the minimal reproduction in the browser."
- Test initial mount, updates, and unmount separately, as well as success and failure paths
- For APIs whose behavior differs between Vue 3.4 and earlier and Vue 3.5 and later, record the Version
- Compare before and after changes with Vue Devtools, Console, Network, and SFC compile
Do not make a temporary workaround the standard solution
- Do not hide update loops with nextTick or boolean guards
- Do not add deep watchers indiscriminately without confirming the cause
- Do not use index or random values as a general solution for v-for keys
- Do not hide contract violations with TypeScript any or forced type Assertions
Check related Vue symptoms in succession
Share unresolved Vue code safely
- Extract only the required template, script, and style into a shareable copy.
- Remove Tokens, Cookies, Authorization, and personal information before entering input
- Mask component names, identifiers, and strings in the browser
- Compare with the original SFC and visually check macros, directives, props, emit, slots, and classes
Check the boundaries of the Vue code masking tool
| Target | Observed as of 2026-08-13 | Confirm before sharing |
|---|---|---|
| Basic APIs and macros | Generally preserve ref, reactive, computed, watch, defineProps, defineEmits, and similar terms. | Do not consider it a fixed guarantee of support for all APIs |
| Vue 3.4 / 3.5 APIs | defineModel, defineOptions, useTemplateRef, useId, and onWatcherCleanup may be replaced | Compare the Version and API name with the original SFC |
| template | v-model arguments, modifiers, expressions, component, props, emits, slot, and ARIA attributes may change | Search the full text for parent-child contracts and display text |
| SFC attributes and import | Attribute values such as lang="ts" and import source strings may be replaced | Check block structure, setup, lang, and scoped. |
| style scoped | Class values, corresponding selectors, and CSS properties may change | Compare across template and style |
| Plain text in the template | Japanese display text may remain. | Check customer names, screen names, and business terminology visually and by search |
| Save | Process input and results in the browser. | Do not send or save data to a server; use LocalStorage only for display settings |
The output is a copy for sharing. It does not guarantee complete anonymization, SFC executability, or referential integrity. Keep the original code separately, and after conversion check the correspondence among template, script, style, and parent-child components.
Pre-sharing checklist
- Removed API keys, tokens, cookies, and authorization before tool input
- No customer names, email addresses, order numbers, API URLs, internal hosts, route names, or store names remain
- The template expressions and script identifiers, props / emit / slot / v-model arguments correspond
- Class names and style scoped selectors, lang="ts", scoped, and SFC block structure are preserved
- Vue APIs, macros, and directives have not been replaced incorrectly
- Re-execute after syntax validation or in a minimal environment, and limit the public scope of issues, chats, and similar content to the minimum necessary
You can individually unmask or reapply masking in the result by right-clicking. Immediately before sharing, recheck whether the revealed original information is truly necessary for the explanation.
Check differences between Vue 3.4 / 3.5 and TypeScript
Use the Vue 3.5 series as the baseline and explicitly state where needed that Reactive Props Destructure, useTemplateRef, and onWatcherCleanup are 3.5 features, while defineModel is available from 3.4. Do not confuse ordinary reactive destructuring with compiler transformation.
Separate shared assets by format
| Shared materials | Recommended handling |
|---|---|
| Vue SFC | Check all three layers together with Vue code masking |
| API JSON | Check key, value, and array structures with JSON masking |
| Console and stack trace | Check URLs, paths, and tokens with log masking |
| CSS and configuration fragments | Separate into supported formats and record the correspondence with the SFC |
Check specifications in official Vue / Pinia documentation
- Vue — Reactivity Fundamentals
- Vue — Watchers
- Vue — Component v-model
- Vue — Props
- Vue — Component Events
- Vue — Template Refs
- Vue — SFC Syntax Specification
- Vue — script setup
- Vue 3.5 Announcement
- Pinia — Core Concepts
Use Qiita, Zenn, and similar sites to understand search demand and examples, and verify causes, recommended fixes, and Version differences with current official Vue and Pinia documentation and a minimal reproduction.
Example: attach a minimal reproduction SFC to an issue
Because the same names connect template, script, and style in Vue SFCs, remove Secrets first, transform all three layers together, and check the differences.
Use only example.test and fictional identifiers and values to create a minimal reproduction that contains no real environment domains, routes, or customer information.
- Minimize to an SFC that reproduces one symptom
- Remove secret values before masking
- Compare template, script, style, and parent-child contracts
- Share JSON and logs using their corresponding tools
You can individually unmask or reapply masking in the result by right-clicking. Before sending, recheck whether the revealed original information is truly necessary for sharing.
Frequently asked questions
- Can masked Vue SFC run as-is?
- Not guaranteed. macro, directive, SFC attributes, import, CSS selectors, and more change, so treat this as a sharing Copy and check compile and reference relationships.
- Can I paste JSON or Stack Traces into the same input field?
- Separate by format. Use JSON masking for API Payloads, and Log masking for Console and Stack Trace.
- Is the entered Vue code sent to a server?
- Input and results are processed in the browser and are not sent to or stored on the Develop Tools server. Only display settings are saved to LocalStorage.