OSWeb welcome screen and full screen on mobile devices

Comments

• Silk

  August 2023

  New update: it seems it was a problem with OSWeb 2.0.0. I updated to version 2.0.1 and it works perfectly fine now.
• Silk

  August 2023

  I spotted a bug with the latest release (2.0.1) of OSWeb: if you double click or spam click the welcome screen, the experiment does not run as expected. I inspected the console and got errors suggesting that the whole experiment experiment is loaded at least twice (1 more for each iteration of a clicking event). So far I got errors indicating that const variables have already been declared like (1) and that multiple html elements share the same id (2) - which is not the case in my source code.

  1) Uncaught SyntaxError: Identifier 'bouton_oui' has already been declared
      at JavaScriptWorkspace.exec (tmp7u5vo4a0.html:3272:28)
      at InlineJavaScript.prepare (tmp7u5vo4a0.html:6563:20)
      at ItemStore.prepare (tmp7u5vo4a0.html:3091:23)
      at Sequence._prepare_complete (tmp7u5vo4a0.html:8027:33)
      at Sequence.prepare (tmp7u5vo4a0.html:8102:10)
      at ItemStore.prepare (tmp7u5vo4a0.html:3091:23)
      at Experiment.run (tmp7u5vo4a0.html:5523:35)
      at Runner._initialize (tmp7u5vo4a0.html:11289:22)
      at Screen.
  
  2) Duplicate form field id in the same form
  

  I managed to reproduce the bug when the experiment is started directly from the OpenSesame user interface and from JATOS. This is unnoticable on quick loading experiments, but on slower ones it becomes a problem given that multiple clicks is not a so uncommon behaviour. You can try to double click the welcome screen of this experiment and see what happens: https://jatos-server.web.rug.nl/publix/30/start?batchId=32&generalMultiple

  I don't know if it is already a known bug or not, @sebastiaan. Reverting to OSWeb 2.0 yields similar results unfortunately. One workaround is to disable the welcome screen, however this is not ideal to load medias and full screen won't happen for security reasons unless we ask for a user interaction (for anyone interested, this is super easy to do, check this: https://www.w3schools.com/howto/howto_js_fullscreen.asp).
• eduard

  September 2023

  Hi Silk,

  Thanks for this report, very appreciated! Perhaps you can post it on github? Bug reports are better placed there:

  https://github.com/open-cogsci/opensesame-extension-osweb

  Eduard