Schema Script Not Loading
Here are some reasons why your schema loader script may not be loading:
1. Incomplete Script Implementation:
Sometimes, only a part of the script is pasted or implemented on the webpage. For example, the following script may be added without its accompanying line, leading to incomplete execution:
Accompanying Line:
<script type="text/javascript"
Complete Script:
src="https://schema.milestoneinternet.com/schema/js/msschemaloader_min.js"></script>
<script type="text/javascript" id="">msSchemaLoader();</script>
Tip: Ensure both lines are correctly placed on the page.
2. Interference from Third-Party Scripts
Certain third-party scripts, like lazy load features, can defer or delay the execution of all JavaScript scripts, including the critical ones. This can prevent the msSchemaLoader () function from being executed at the appropriate time.
Tip: Review the order and method of loading these scripts to ensure compatibility.
3. Blocked by Cookie Policy or PageSpeed Plugins
Cookie consent banners or performance optimization plugins can block or delay the execution of certain scripts until the user interacts with the page or accepts the cookie policy.
Tip: Ensure that the script <script type="text/javascript" id=""> msSchemaLoader ();</script> is not being blocked by these policies and is allowed to run as intended.
4. Issues with Google Tag Manager (GTM) or Other Containers
Suppose the script is added via GTM or another tag/container manager. In that case, there may be cases where the GTM itself is affected by user interaction requirements (e.g., cookie consent) or other blocking factors.
Tip: Make sure that GTM and any other containers are configured to run scripts without requiring human interaction and that all triggers and tags are firing correctly.
5. Optimize Script Placement
Place critical scripts directly in the <head> to ensure they load in the correct sequence and without delay.
6. Content Security Policy (CSP) Restrictions
Websites with strict Content Security Policies may block certain scripts from loading or executing if they are not whitelisted.
Tip: Ensure that the domain hosting the script (e.g., https:// schema. milestoneinternet.com) is included in the CSP directives (such as script-src) to allow its execution. For example; to allow schema loader script:
Content-Security-Policy: script-src https:// schema. milestoneinternet.com;
7. Heavy Page Load or Network Latency
If the webpage is very heavy or network latency is high, certain scripts might not load within the expected time, causing the function not to execute.
Tip: Optimizing the page load speed and ensuring critical scripts have sufficient load time can mitigate this issue.