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fix: 修复现代浏览器不支持catch optional #10052

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fix: 修复现代浏览器不支持catch optional #10052

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2 changes: 1 addition & 1 deletion packages/plugin-legacy/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,7 @@ const legacyEntryId = 'vite-legacy-entry'
const systemJSInlineCode = `System.import(document.getElementById('${legacyEntryId}').getAttribute('data-src'))`

const detectModernBrowserVarName = '__vite_is_modern_browser'
const detectModernBrowserCode = `try{import.meta.url;import("_").catch(()=>1);}catch(e){}window.${detectModernBrowserVarName}=true;`
const detectModernBrowserCode = `try{import.meta.url;import("_").catch(()=>1);eval("try{}catch{}");}catch(e){}window.${detectModernBrowserVarName}=true;`
const dynamicFallbackInlineCode = `!function(){if(window.${detectModernBrowserVarName})return;console.warn("vite: loading legacy build because dynamic import or import.meta.url is unsupported, syntax error above should be ignored");var e=document.getElementById("${legacyPolyfillId}"),n=document.createElement("script");n.src=e.src,n.onload=function(){${systemJSInlineCode}},document.body.appendChild(n)}();`

const forceDynamicImportUsage = `export function __vite_legacy_guard(){import('data:text/javascript,')};`
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