This is a follow-up to 119afdf788 Since
continue/fulfill/abort now may throw on the server after page has been
closed, we need to catch the errors manually. On the client it's fixed
by the original change.
This fixes errors in the existing tests:
```
1) [chromium] › library/browsercontext-route.spec.ts:172:3 › should support Set-Cookie header ────
Error:
at ../packages/playwright-core/src/server/chromium/crConnection.ts:147
145 | const id = this._connection._rawSend(this._sessionId, method, params);
146 | return new Promise((resolve, reject) => {
> 147 | this._callbacks.set(id, { resolve, reject, error: new ProtocolError('error', method) });
| ^
148 | });
149 | }
150 |
at /Users/yurys/playwright/packages/playwright-core/src/server/chromium/crConnection.ts:147:57
at new Promise (<anonymous>)
at CRSession.send (/Users/yurys/playwright/packages/playwright-core/src/server/chromium/crConnection.ts:146:12)
at RouteImpl.continue (/Users/yurys/playwright/packages/playwright-core/src/server/chromium/crNetworkManager.ts:566:25)
at FrameManager.requestStarted (/Users/yurys/playwright/packages/playwright-core/src/server/frames.ts:299:23)
at CRNetworkManager._onRequest (/Users/yurys/playwright/packages/playwright-core/src/server/chromium/crNetworkManager.ts:314:57)
at CRNetworkManager._onRequestPaused (/Users/yurys/playwright/packages/playwright-core/src/server/chromium/crNetworkManager.ts:202:12)
at CRSession.emit (node:events:517:28)
at /Users/yurys/playwright/packages/playwright-core/src/server/chromium/crConnection.ts:172:14
at runNextTicks (node:internal/process/task_queues:60:5)
at processImmediate (node:internal/timers:447:9)
```
Reference https://github.com/microsoft/playwright/issues/28490
9d91b7caf5