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What is the domain of iframe

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Nov 27, 2023 am 11:34 AM

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In front-end development, there are cross-domain problems between the embedded page of and the parent page. The domain is composed of protocol, host name and port number, for example, "https://example.com: 8080", if the domain of the embedded page is different from that of the parent page, you will encounter cross-domain problems. This is because the browser limits the execution of cross-domain scripts for security reasons to prevent malicious script attacks. </p></blockquote> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/202311/27/2023112711344560636.jpg" class="lazy" alt="What is the domain of iframe" ></p> <p># Operating system for this tutorial: Windows 10 system, Dell G3 computer. </p> <div id="chat-messages"><div><article>##In front-end development, there are cross-domain problems between <iframe> embedded pages and parent pages (that is, pages containing <iframe>) because their domains (also called "source") are different. <p></p>The domain is composed of protocol, host name and port number, such as https://example.com:8080. If the embedded page has a different domain than the parent page, you will encounter cross-domain problems. This is because browsers restrict the execution of cross-domain scripts for security reasons to prevent malicious script attacks. <p></p>In order to solve the cross-domain problem, you can set the domain of <iframe> through the following methods: <p></p> <ol style="margin-bottom: 16px; padding-left: 2em;">Use the sandbox attribute: The sandbox attribute can be used to limit the inline of <iframe> functionality of the page, thereby reducing its security risks. At the same time, it can also be used to set the domain of <iframe>. For example: <li> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"><iframe src="https://example.com" sandbox="allow-same-origin"></iframe></pre><div class="contentsignin">Copy after login</div></div> </ol>Here, the domain of <iframe> is set to be the same as the parent page, that is, only resources belonging to the same domain as the parent page are allowed to be loaded. <p></p> <ol start="2" style="margin-bottom: 16px; padding-left: 2em;">Set document.domain in the embedded page: If the main domain name of the embedded page and the parent page are the same, you can lift the cross-domain restriction by setting document.domain in both pages. For example: <li> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"> <script> document.domain = 'example.com'; </script> <iframe src="https://sub.example.com"></iframe></pre><div class="contentsignin">Copy after login</div></div> <div class="code" style="position:relative; padding:0px; margin:0px;"><pre class="brush:php;toolbar:false"> <script> document.domain = 'example.com'; </script></pre><div class="contentsignin">Copy after login</div></div> </ol> <ol start="3" style="margin-bottom: 16px; padding-left: 2em;">Use postMessage API: postMessage API can be used to pass messages between windows to achieve cross-domain communication. Secure cross-domain communication can be achieved by using the window.postMessage() method in the parent page and the embedded page to send and receive messages respectively. <li> </ol>It should be noted that unless necessary, it is not recommended to use <iframe> to embed content from other domains, as this may introduce security vulnerabilities and performance issues. <p></p></article></div></div><p>The above is the detailed content of What is the domain of iframe. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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Loading sequence, etc.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/599101.html" title="What does data-id in iframe mean?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202308/28/2023082814252193959.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What does data-id in iframe mean?" /> </a> <a href="https://www.php.cn/faq/599101.html" title="What does data-id in iframe mean?" class="phphistorical_Version2_mids_title">What does data-id in iframe mean?</a> <span class="Articlelist_txts_time">Aug 28, 2023 pm 02:25 PM</span> <p class="Articlelist_txts_p">The data-id in an iframe refers to a custom attribute used in HTML tags to store the identifier of a specific element. By using the data-id attribute, you can add a unique identifier to the iframe element so that it can be manipulated and accessed in JavaScript. The naming of the data-id attribute can be customized according to specific needs, but some naming conventions are usually followed to ensure its uniqueness and readability. The data-id attribute can also be used to identify and manipulate a specific iframe.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/520600.html" title="Microsoft: Outlook error downloads 'TokenFactoryIframe' file on every visit" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/000/000/164/168186390343243.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="Microsoft: Outlook error downloads 'TokenFactoryIframe' file on every visit" /> </a> <a href="https://www.php.cn/faq/520600.html" title="Microsoft: Outlook error downloads 'TokenFactoryIframe' file on every visit" class="phphistorical_Version2_mids_title">Microsoft: Outlook error downloads 'TokenFactoryIframe' file on every visit</a> <span class="Articlelist_txts_time">Apr 19, 2023 am 08:25 AM</span> <p class="Articlelist_txts_p">Microsoft Outlook is downloading a mysterious file called "TokenFactoryIframe" on macOS when users access the email service through the Safari browser. This issue has now been widely reported by users who have discovered "TokenFactoryIframe" files that Outlook downloads on every visit. Outlook downloads this mysterious file every few seconds or at least every time you access Outlook on Apple platforms. Based on our findings, this appears to be an issue caused by an incorrect server-side update posted to Outlook and has nothing to do with Safari or macOS. Microsoft in a copy</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/595827.html" title="What technology can replace iframe" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202308/24/2023082413541968774.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What technology can replace iframe" /> </a> <a href="https://www.php.cn/faq/595827.html" title="What technology can replace iframe" class="phphistorical_Version2_mids_title">What technology can replace iframe</a> <span class="Articlelist_txts_time">Aug 24, 2023 pm 01:53 PM</span> <p class="Articlelist_txts_p">Technologies that can replace iframes include Ajax, JavaScript libraries or frameworks, Web component technologies, front-end routing, and server-side rendering. Detailed introduction: 1. Ajax is a technology used to create dynamic web pages. It can realize asynchronous update of the page by exchanging data with the server in the background without refreshing the entire page. Using Ajax can load and display content more flexibly, and there is no need to use iframe to embed other pages; 2. JavaScript library or framework , such as React and so on.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/599086.html" title="What are the loading events of iframe?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202308/28/2023082813514630803.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What are the loading events of iframe?" /> </a> <a href="https://www.php.cn/faq/599086.html" title="What are the loading events of iframe?" class="phphistorical_Version2_mids_title">What are the loading events of iframe?</a> <span class="Articlelist_txts_time">Aug 28, 2023 pm 01:55 PM</span> <p class="Articlelist_txts_p">The loading events of iframe include onload event, onreadystatechange event, onbeforeunload event, onerror event, onabort event, etc. Detailed description: 1. onload event, specifying the JavaScript code to be executed after loading the iframe; 2. onreadystatechange event, specifying the JavaScript code to be executed when the iframe state changes, etc.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/596547.html" title="What does iframe mean in Python?" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202308/25/2023082515190938735.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What does iframe mean in Python?" /> </a> <a href="https://www.php.cn/faq/596547.html" title="What does iframe mean in Python?" class="phphistorical_Version2_mids_title">What does iframe mean in Python?</a> <span class="Articlelist_txts_time">Aug 25, 2023 pm 03:24 PM</span> <p class="Articlelist_txts_p">iframe in Python is an HTML tag used to embed another web page or document in a web page. In Python, you can use various libraries and frameworks to process and manipulate iframes, the most commonly used of which is the BeautifulSoup library, which can easily extract the content of an iframe from a web page and manipulate and process it. Knowing how to handle and manipulate iframes is extremely useful for both web development and data scraping.</p> </div> <div class="phphistorical_Version2_mids"> <a href="https://www.php.cn/faq/604434.html" title="What's the danger in iframes" class="phphistorical_Version2_mids_img"> <img onerror="this.onerror=''; this.src='/static/imghw/default1.png'" src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/202309/08/2023090815142962875.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="What's the danger in iframes" /> </a> <a href="https://www.php.cn/faq/604434.html" title="What's the danger in iframes" class="phphistorical_Version2_mids_title">What's the danger in iframes</a> <span class="Articlelist_txts_time">Sep 08, 2023 pm 03:14 PM</span> <p class="Articlelist_txts_p">The dangers in iframes mainly include: 1. Security vulnerabilities. Malicious web pages can load other web pages through iframes and carry out some attacks; 2. Same-origin policy breakthrough. By loading web pages under other domain names in iframes, the same-origin policy can be breached. strategy to achieve cross-domain communication, which may be maliciously attacked; 3. Code execution issues, web pages loaded in iframes can execute JS code, which may cause some security issues; 4. SEO issues, search engines may not be able to correctly parse and Index content loaded via iframe and more.</p> </div> </div> </div> </div> </div> </main> <footer> <div class="footer"> <div class="footertop"> <img src="/static/imghw/logo.png" alt=""> <p>Public welfare online PHP training，Help PHP learners grow quickly！</p> </div> <div class="footermid"> <a href="https://www.php.cn/about/us.html">About us</a> <a href="https://www.php.cn/about/disclaimer.html">Disclaimer</a> <a href="https://www.php.cn/update/article_0_1.html">Sitemap</a> </div> <div class="footerbottom"> <p> © php.cn All rights reserved </p> </div> </div> </footer> <input type="hidden" id="verifycode" value="/captcha.html"> <script>layui.use(['element', 'carousel'], function () {var element = layui.element;$ = layui.jquery;var carousel = layui.carousel;carousel.render({elem: '#test1', width: '100%', height: '330px', arrow: 'always'});$.getScript('/static/js/jquery.lazyload.min.js', function () {$("img").lazyload({placeholder: "/static/images/load.jpg", effect: "fadeIn", threshold: 200, skip_invisible: false});});});</script> <script src="/static/js/common_new.js"></script> <script type="text/javascript" src="/static/js/jquery.cookie.js?1745020979"></script> <script src="https://vdse.bdstatic.com//search-video.v1.min.js"></script> <link rel='stylesheet' id='_main-css' href='/static/css/viewer.min.css?2' type='text/css' media='all' /> <script type='text/javascript' src='/static/js/viewer.min.js?1'></script> <script type='text/javascript' src='/static/js/jquery-viewer.min.js'></script> <script type="text/javascript" src="/static/js/global.min.js?5.5.53"></script> <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function () { var u = "https://tongji.php.cn/"; _paq.push(['setTrackerUrl', u + 'matomo.php']); _paq.push(['setSiteId', '9']); var d = document, g = d.createElement('script'), s = d.getElementsByTagName('script')[0]; g.async = true; g.src = u + 'matomo.js'; s.parentNode.insertBefore(g, s); })(); </script> <script> // top layui.use(function () { var util = layui.util; util.fixbar({ on: { mouseenter: function (type) { layer.tips(type, this, { tips: 4, fixed: true, }); }, mouseleave: function (type) { layer.closeAll("tips"); }, }, }); }); document.addEventListener("DOMContentLoaded", (event) => { // 定义一个函数来处理滚动链接的点击事件 function setupScrollLink(scrollLinkId, targetElementId) { const scrollLink = document.getElementById(scrollLinkId); const targetElement = document.getElementById(targetElementId); if (scrollLink && targetElement) { scrollLink.addEventListener("click", (e) => { e.preventDefault(); // 阻止默认链接行为 targetElement.scrollIntoView({ behavior: "smooth" }); // 平滑滚动到目标元素 }); } else { console.warn( `Either scroll link with ID '${scrollLinkId}' or target element with ID '${targetElementId}' not found.` ); } } // 使用该函数设置多个滚动链接 setupScrollLink("Article_Details_main1L2s_1", "article_main_title1"); setupScrollLink("Article_Details_main1L2s_2", "article_main_title2"); setupScrollLink("Article_Details_main1L2s_3", "article_main_title3"); setupScrollLink("Article_Details_main1L2s_4", "article_main_title4"); setupScrollLink("Article_Details_main1L2s_5", "article_main_title5"); setupScrollLink("Article_Details_main1L2s_6", "article_main_title6"); // 可以继续添加更多的滚动链接设置 }); window.addEventListener("scroll", function () { var fixedElement = document.getElementById("Article_Details_main1Lmain"); var scrollTop = window.scrollY || document.documentElement.scrollTop; // 兼容不同浏览器 var clientHeight = window.innerHeight || document.documentElement.clientHeight; // 视口高度 var scrollHeight = document.documentElement.scrollHeight; // 页面总高度 // 计算距离底部的距离 var distanceToBottom = scrollHeight - scrollTop - clientHeight; // 当距离底部小于或等于300px时，取消固定定位 if (distanceToBottom <= 980) { fixedElement.classList.remove("Article_Details_main1Lmain"); fixedElement.classList.add("Article_Details_main1Lmain_relative"); } else { // 否则，保持固定定位 fixedElement.classList.remove("Article_Details_main1Lmain_relative"); fixedElement.classList.add("Article_Details_main1Lmain"); } }); </script> </body> </html>