Supported Browsers
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DP Official Documentation - General
The developers and system administrators strive to support a wide range of users and web browsers. We can't, however, develop for and support every version of every web browser. This page documents the known browser support.
Minimum browsers versions
The following should be considered the lowest known supported browser versions for pgdp.net.
- Chrome 64*
- Firefox 78
- Microsoft Edge 79
- Opera 51*
- Safari 11.1*
Internet Explorer 11 is not supported as of 31 Dec 2020. IE11 users are strongly encouraged to move to one of the supported browsers above.
* On Macs, Chrome, Opera and Safari are dependent on the OS for certificate validation. The oldest version of MacOS on which these browsers will work is High Sierra (10.13). Firefox appears to work on older versions of macOS.
Factors influencing version support
The following factors enter into which browsers we support:
- HTML5 and CSS3 support
- Software developers code against "modern browsers" that support HTML5 and CSS3.
- Format Preview and the Proofreading Toolbox make use of Web Storage.
- DP Sans Mono and DejaVu Sans Mono are provided as web fonts.
- Javascript support
- The DP Unicode implementation relies on string normalization and the use of String.prototype.normalize() in Javascript for browser-side validation.
- The large file upload support relies on String.prototype.padStart() for checksum calculations.
- The SVG-based charts rely on arrow methods and array spreading.
- jQuery
- Developers use jQuery as a Javascript library. The version of jQuery used doesn't support IE <=8, Opera <=12.1x, and Safari <=5.1+.
- SSL server settings
- The pgdp.net web server is configured to ensure secure communication with web browsers by not using old, deprecated encryption ciphers. This limits which web browsers we can support.