Webview Doesn't Work on Compiled Plugin in Windows

[bendurso]

On Mac, it works fine in HISE and in the compiled plugin too.

In Windows, it works in HISE but not in the compiled plugin.
I have enableCache enabled and then applied the reset as I saw in other posts.

I'm using the same commit on Windows and Mac (last week commit Sep 9, 2025)

I'm rendering a page of my website like in this example https://forum.hise.audio/topic/9159/webview-doesn-t-work-in-compiled-plugins-and-stand-alone-apps/5

[Straticah]

@bendurso does it work with the Webview examples from Christoph?

GitHub - christophhart/hise_tutorial: The Tutorial project for HISE

The Tutorial project for HISE. Contribute to christophhart/hise_tutorial development by creating an account on GitHub.

GitHub (github.com)

I think the browser example in „HISE Tutorials“ is best to test this with.

[bendurso]

@Straticah Thanks, made the test and got the same issue, works on HISE, not in compiled plugin

[Straticah]

@bendurso hm the browser example works on my end for both win and mac.

development build from yesterday.

Red part is Webview

Make sure you have:

wv.set("enableCache", true);
wv.set("enablePersistence", true);

[bendurso]

@Straticah Yep, I have these settings enabled. Another setting of the plugin that may be related?

[Straticah]

@bendurso Not that i am aware of i guess you have vst3 support enabled already.

[bendurso]

@Straticah I noticed that the ‘PlayCanvas’ example had caching disabled. I changed it to enabled, and it works now in the compiled version.

In my project, I had caching and persistence enabled, so there must be another reason why it doesn’t work. But at least now I know it’s supposed to work. Thanks :)

[Christoph Hart]

@bendurso if you‘re loading an external website you should not use any of those flags, there‘s nothing to cache or be persistent.

[bendurso]

@Christoph-Hart Thanks, I tried with and without cache/persistence, but it still doesn’t work.

But.. I tested the same script along with the same HTML file in a new project, and it works. There must be something in my project that’s preventing the page from rendering. I used the same project settings.

It actually doesnt even load the html in the original project, because I have a spinner while the page is loading. And I don't even see the spinner.

[bendurso]

Yeah I found the issue.. for some reason in the compiled plugin it doesn't find the html file. I checked it with File.isFile() and only founds it on Hise.

I have the setting "Embed Images Files" enabled. I tried also disabling this and putting the ImageResources.dat into the appdata folder, but same issue.

This is how I'm getting the file:

const var webroot = FileSystem.getFolder(FileSystem.AudioFiles).getParentDirectory().getChildFile("Images/news");
WebView1.setIndexFile(webroot.getChildFile("file.html"));

The weird thing is that.. in a new project it works. But on my existing project it doesn't. Any ideas on what else could be blocking the file?

[d.healey]

@bendurso said in Webview Doesn't Work on Compiled Plugin in Windows:

const var webroot = FileSystem.getFolder(FileSystem.AudioFiles).getParentDirectory()

This will return the app data folder in the compiled plugin.

[bendurso]

@d-healey yeah I know. If I embed the Image Files will be into the plugin itself. But the issue is not here because I'm being able to make it work in a new small project with the same script and html (in the compiled plugin).