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fix: render standalone HTML documents consistently in WebChat #6157

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tsubasakong wants to merge 2 commits into from
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fix: render standalone HTML documents consistently in WebChat #6157

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265d0fd
fix: render standalone HTML documents as code blocks
tsubasakong Mar 12, 2026
f22a266
Merge remote-tracking branch 'upstream/master' into HEAD
tsubasakong Mar 12, 2026
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17 changes: 16 additions & 1 deletion dashboard/src/components/chat/message_list_comps/MessagePartsRenderer.vue
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Original file line number Diff line number Diff line change
Expand Up @@ -63,7 +63,7 @@
<!-- Text (Markdown) -->
<MarkdownRender
v-else-if="renderPart.part.type === 'plain' && renderPart.part.text && renderPart.part.text.trim()"
custom-id="message-list" :custom-html-tags="['ref']" :content="renderPart.part.text" :typewriter="false"
custom-id="message-list" :custom-html-tags="['ref']" :content="normalizeMarkdownContent(renderPart.part.text)" :typewriter="false"
class="markdown-content" :is-dark="isDark" :monacoOptions="{ theme: isDark ? 'vs-dark' : 'vs-light' }" />

<!-- Image -->
Expand Down Expand Up @@ -151,6 +151,21 @@ const emitDownloadFile = (file) => {
emit('download-file', file);
};

const FULL_HTML_DOCUMENT_RE = /^\s*(?:<!doctype\s+html[^>]*>\s*)?<html\b[\s\S]*<\/html>\s*$/i;

const normalizeMarkdownContent = (text) => {
if (typeof text !== 'string') {
return text;
}

const trimmed = text.trim();
if (!trimmed || !FULL_HTML_DOCUMENT_RE.test(trimmed)) {
return text;
}

return `\`\`\`html\n${trimmed}\n\`\`\``;
};

const formatDuration = (seconds) => {
if (seconds < 1) {
return `${Math.round(seconds * 1000)}ms`;
Expand Down