[GUACAMOLE-1793] "Error: blob is undefined" when creating new SessionRecording from Blob

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.1
• Fix Version/s: 1.5.3
• Component/s: guacamole-common-js
• Assignee: Unassigned
• Reporter: Leonard Wagner
• Created: 23/May/23 08:15
• Updated: 14/Jul/23 16:37
• Resolved: 14/Jul/23 16:37

Description

When creating a Guacamole.SessionRecording instance by supplying a blob an error is thrown.

To reproduce this, run the following test:

describe("Guacamole.SessionRecording", function EventSpec() {
    it("should create new SessionRecording instance from Blob", async function () {
        const url = 'https://raw.githubusercontent.com/apache/' +
            'guacamole-client/master/doc/guacamole-playback-example/src/main/webapp/recording.guac';
        const response = await fetch(url);
        const blob = await response.blob();
        const recording = new Guacamole.SessionRecording(blob);
        expect(recording).not.toBeNull();
    });
});

Expected result: The test passes without an error.
Actual behavior: An error is thrown when calling the constructor function.

TypeError: blob is undefined in src/main/webapp/modules/SessionRecording.js (line 280)
readNextBlock@src/main/webapp/modules/SessionRecording.js:280:17
parseBlob@src/main/webapp/modules/SessionRecording.js:296:9
SessionRecording@src/main/webapp/modules/SessionRecording.js:403:18
EventSpec/<@src/test/javascript/Recording.js:26:27