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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>🔧Troubleshooting</title><meta name="description" content="Only a blank page is displayed It is probably because of CORS restrictions."><link rel="icon" type="image/png" href="favicon.png"><meta property="og:title" content="🔧Troubleshooting"><meta property="og:description" content="Only a blank page is displayed It is probably because of CORS restrictions."><meta property="og:type" content="website"><meta property="og:image" content="favicon.png"><meta property="og:locale" content="en"><meta name="twitter:card" content="summary"><meta name="twitter:title" content="🔧Troubleshooting"><meta name="twitter:description" content="Only a blank page is displayed It is probably because of CORS restrictions."><meta name="twitter:image" content="favicon.png"><meta name="author" content="HelpViewer/helpHello"><meta name="robots" content="index,follow"><link rel="alternate" type="application/rss+xml" title="RSS" href="rss.xml"><script type="application/ld+json">{"@context":"https://schema.org","@type":"Article","headline":"🔧Troubleshooting","datePublished":"2026-10-11T20:52:09.788Z","dateModified":"2026-10-11T20:52:09.788Z","publisher":{"@type":"Organization","name":"HelpViewer/helpHello"},"author":"HelpViewer/helpHello"}</script><link rel="stylesheet" href="src/base.css" type="text/css"><link rel="stylesheet" href="src/TPL-HTML-fixes.css" type="text/css"><link rel="stylesheet" href="src/custom.css" type="text/css"><meta name="keywords" content="troubleshooting"></head><body class="inStandard"><div class="container" id="container"><div class="main" id="main"><div class="header" id="header" role="banner"><h1 id="mtitle">🔧Troubleshooting</h1><div id="header-toolbar" class="toolbar" role="toolbar"><a id="printBtn" title="Print page" aria-label="Print page" href="javascript:window.print();">🖨️</a><a id="nav-left" title="Previous topic" aria-label="Previous topic" href="workmode.htm">⬅</a><a id="nav-right" title="Next topic" aria-label="Next topic" href="docker.htm">➡</a><a id="downP-TopicTree" title="Table of Contents" aria-label="Table of Contents" href="toc.htm">📖</a><a id="downP-Glossary" title="Glossary" aria-label="Glossary" href="keywordList/index.htm">📇</a><a id="downP-Fulltext" title="Fulltext search" aria-label="Fulltext search" href="fulltextList/index.htm">🔎</a><a id="downP-Home" title="Home" aria-label="Home" href="index.htm">🏡</a></div></div><div class="content" id="content" role="main" aria-live="polite"><h2 id="h-2-7">Only a blank page is displayed<a href="#h-2-7" class="anchor-link"> #</a></h2><p>It is probably because of <a href="corsPolicy.htm#h-1-6" title="Browser possibly blocking local file access (file://) due to CORS policy restrictions" data-param="corsPolicy.md">CORS restrictions</a>.</p><p></p></div></div></div></body></html>