Does your PDF.js not playing nice with IE9? Frustrating, right? But fret not, because we've got you covered with some troubleshooting tips to get things back on track.
One of the most common issues causing PDF.js to misbehave on Internet Explorer 9 is the lack of proper JavaScript support in this older browser version. PDF.js heavily relies on modern JavaScript features that may not be fully supported on IE9.
To address this, one of the simplest solutions is to use a polyfill such as es5-shim or es5-sham, which can help fill in the gaps in JavaScript support on older browsers like IE9. By including this polyfill in your project, you can ensure that the necessary JavaScript features required by PDF.js are supported, potentially resolving the compatibility issues.
Another potential culprit for PDF.js not working on IE9 could be related to compatibility mode settings in the browser. Sometimes, IE9 may be running in a mode that emulates an even older version of Internet Explorer, causing conflicts with the modern JavaScript code used by PDF.js.
To check and adjust the compatibility settings in IE9, simply go to the Settings or Tools menu in the browser, find the Compatibility View Settings option, and ensure that the website hosting PDF.js is not listed there. Removing the site from the compatibility list can help IE9 render it using its native capabilities instead of emulating an older version, potentially resolving the PDF.js issues.
Additionally, it's crucial to ensure that the PDF files you are trying to load with PDF.js are compatible with the features and standards supported by the library. PDF.js excels at rendering modern PDF files with a focus on web standards, and if your PDF documents contain complex structures or features that are not well-supported by the library, it could lead to rendering issues on IE9.
To troubleshoot this, you may consider testing PDF.js with simpler, standard-compliant PDF files to see if the problem persists. If PDF.js performs well with these test files, it could indicate that the compatibility issues lie within the PDF documents themselves, prompting you to optimize or modify them for better rendering on IE9.
Lastly, keeping PDF.js and your browser up to date is essential for ensuring smooth performance and compatibility. Check for any available updates to PDF.js and ensure that IE9 is running the latest available version to leverage any bug fixes or improvements that may address the issues you are experiencing.
By following these troubleshooting steps and understanding the potential causes of PDF.js not working on IE9, you can enhance the compatibility and performance of your web applications that rely on this powerful PDF rendering library. With a little bit of technical know-how and persistence, you'll have PDF.js up and running smoothly in no time on IE9.