P3
ADDITIONAL SYSTEM INFORMATION :
JavaFX 21.0.1 (actually happens with all versions from at least Java 17 up), JDK versions 17 to 21 from different vendors (Oracle OpenJDK, Azul Zulu, Temurin)
- Darwin MacBook-Pro 23.1.0 Darwin Kernel Version 23.1.0: Mon Oct 9 21:27:24 PDT 2023; root:xnu-10002.41.9~6/RELEASE_ARM64_T6000 arm64
- Windows 11 Pro (ARM 64)
- Linux debian 6.1.0-13-arm64 #1 SMP Debian 6.1.55-1 (2023-09-29) aarch64 GNU/Linux
A DESCRIPTION OF THE PROBLEM :
When I open the attached file on my laptop with retina display, the fraction line is missing.
I first observed this when JavaFX updated the WebKit version so I thought it was a WebKit bug and I raised an issue there (https://bugs.webkit.org/show_bug.cgi?id=207754). However the WebKit devs are unable to reproduce it in recent WebKit versions.
To check whether this is rather a WebKit bug, I tested with Safari on MacOS and Gnome Web on debian, both use WebKit for rendering and show the fraction line both in Retina and non-Retina display modes.
I tested with JavaFX 21.0.1 (and before that 17) WebKit on Windows, Linux, and MacOS and the fraction line is there in non-Retina mode but not in Retina mode.
This worked in JavaFX 8.
REGRESSION : Last worked in version 8
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the provided code on a machine with a Retina display.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The output should contain the user agent string and a rendering of the fraction 3/4.
ACTUAL -
The output should contain the user agent string and a rendering of the fraction 3/4 without the fraction line.
---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) { launch(args); }
@Override
public void start(Stage stage) {
WebView webView = new WebView();
webView.getEngine().loadContent("""
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css" integrity="sha384-n8MVd4RsNIU0tAv4ct0nTaAbDJwPJzDEaqSD1odI+WdtXRGWt2kTvGFasHpSy3SV" crossorigin="anonymous">
\s
<!-- The loading of KaTeX is deferred to speed up page rendering -->
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.js" integrity="sha384-XjKyOOlGwcjNTAIQHIpgOno0Hl1YQqzUOEleOLALmuqehneUG+vnGctmUb0ZY0l8" crossorigin="anonymous"></script>
\s
<!-- To automatically render math in text elements, include the auto-render extension: -->
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/contrib/auto-render.min.js" integrity="sha384-+VBxd3r6XgURycqtZ117nYw44OOcIax56Z4dCRWbxyPt0Koah1uHoK0o4+/RRE05" crossorigin="anonymous"
onload="renderMathInElement(document.body);"> \s
</script>
</head>
<body onload="myRender()">
User Agent:<script>document.write(navigator.userAgent);</script><br>
Fraction 3/4:
\\[ \\frac{3}{4} \\]
</body>
</html>
"""
);
stage.setScene(new Scene(webView, 300, 200));
stage.show();
}
}
---------- END SOURCE ----------
FREQUENCY : always
JavaFX 21.0.1 (actually happens with all versions from at least Java 17 up), JDK versions 17 to 21 from different vendors (Oracle OpenJDK, Azul Zulu, Temurin)
- Darwin MacBook-Pro 23.1.0 Darwin Kernel Version 23.1.0: Mon Oct 9 21:27:24 PDT 2023; root:xnu-10002.41.9~6/RELEASE_ARM64_T6000 arm64
- Windows 11 Pro (ARM 64)
- Linux debian 6.1.0-13-arm64 #1 SMP Debian 6.1.55-1 (2023-09-29) aarch64 GNU/Linux
A DESCRIPTION OF THE PROBLEM :
When I open the attached file on my laptop with retina display, the fraction line is missing.
I first observed this when JavaFX updated the WebKit version so I thought it was a WebKit bug and I raised an issue there (https://bugs.webkit.org/show_bug.cgi?id=207754). However the WebKit devs are unable to reproduce it in recent WebKit versions.
To check whether this is rather a WebKit bug, I tested with Safari on MacOS and Gnome Web on debian, both use WebKit for rendering and show the fraction line both in Retina and non-Retina display modes.
I tested with JavaFX 21.0.1 (and before that 17) WebKit on Windows, Linux, and MacOS and the fraction line is there in non-Retina mode but not in Retina mode.
This worked in JavaFX 8.
REGRESSION : Last worked in version 8
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile and run the provided code on a machine with a Retina display.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The output should contain the user agent string and a rendering of the fraction 3/4.
ACTUAL -
The output should contain the user agent string and a rendering of the fraction 3/4 without the fraction line.
---------- BEGIN SOURCE ----------
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class Main extends Application {
public static void main(String[] args) { launch(args); }
@Override
public void start(Stage stage) {
WebView webView = new WebView();
webView.getEngine().loadContent("""
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.css" integrity="sha384-n8MVd4RsNIU0tAv4ct0nTaAbDJwPJzDEaqSD1odI+WdtXRGWt2kTvGFasHpSy3SV" crossorigin="anonymous">
\s
<!-- The loading of KaTeX is deferred to speed up page rendering -->
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/katex.min.js" integrity="sha384-XjKyOOlGwcjNTAIQHIpgOno0Hl1YQqzUOEleOLALmuqehneUG+vnGctmUb0ZY0l8" crossorigin="anonymous"></script>
\s
<!-- To automatically render math in text elements, include the auto-render extension: -->
<script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.9/dist/contrib/auto-render.min.js" integrity="sha384-+VBxd3r6XgURycqtZ117nYw44OOcIax56Z4dCRWbxyPt0Koah1uHoK0o4+/RRE05" crossorigin="anonymous"
onload="renderMathInElement(document.body);"> \s
</script>
</head>
<body onload="myRender()">
User Agent:<script>document.write(navigator.userAgent);</script><br>
Fraction 3/4:
\\[ \\frac{3}{4} \\]
</body>
</html>
"""
);
stage.setScene(new Scene(webView, 300, 200));
stage.show();
}
}
---------- END SOURCE ----------
FREQUENCY : always
