fix(core): canvas font loading in desktop (#6025)

packages/common/env/src/global.ts

@@ -45,6 +45,7 @@ export const runtimeFlagsSchema = z.object({
     z.literal('internal'),
     z.literal('canary'),
   ]),
+  isSelfHosted: z.boolean().optional(),
 });
 
 export type BlockSuiteFeatureFlags = z.infer<typeof blockSuiteFeatureFlags>;

packages/frontend/core/.webpack/runtime-config.ts

@@ -145,6 +145,7 @@ export function getRuntimeConfig(buildFlags: BuildFlags): RuntimeConfig {
       : buildFlags.mode === 'development'
         ? true
         : currentBuildPreset.allowLocalWorkspace,
+    isSelfHosted: process.env.SELF_HOSTED === 'true',
   };
 
   const testEnvironmentPreset = {

packages/frontend/core/src/components/blocksuite/block-suite-editor/specs.ts

@@ -21,8 +21,7 @@ class CustomAttachmentService extends AttachmentService {
 }
 
 function customLoadFonts(service: RootService): void {
-  const officialDomains = new Set(['app.affine.pro', 'affine.fail']);
-  if (!officialDomains.has(window.location.host)) {
+  if (runtimeConfig.isSelfHosted) {
     const fonts = CanvasTextFonts.map(font => ({
       ...font,
       // self-hosted fonts are served from /assets