Unclear how to address SES initialization errors in Google Apps Script - google-apps-script

I have a script that I want to run as a dialog in a Google text document. When I replace the URL in the call to HtmlService.createHtmlOutputFromFile with a simple script it works fine. For my script it seems that it was rejected by SES initialization. I see in the console:
SES initialization
...
ses-single-frame.opt.js?debug=1:43 Max Severity: Safe spec violation(1).
ses-single-frame.opt.js?debug=1:43 440 Apparently fine
ses-single-frame.opt.js?debug=1:43 43 Deleted
ses-single-frame.opt.js?debug=1:43 3 Frozen harmless
ses-single-frame.opt.js?debug=1:43 1 Skipped
ses-single-frame.opt.js?debug=1:43 Max Severity: Safe spec violation(1).
ses-single-frame.opt.js?debug=1:43 initSES succeeded.
I assume that somewhere I'm violating the GAS security restrictions but I don't know how to find out where. Is there a way to find out where in my code there is a "Safe spec violation"?

Don't worry.
SES initialization occurs long before any code you write is loaded; the log you are looking at refers to errors in the browser's implementation of JavaScript and web APIs.
The one reason that you might care about what's in this log is if SES failed to successfully patch a bug that affected your code — however, the result would be no worse than running the same code in the same browser outside of the Caja environment, and the bugs SES concerns itself with are generally corner cases that typical JavaScript code will never get near (unless it uses Object.freeze).

Related

User agent reduction origin trial is not working

The User-Agent Reduction origin trial is valid from Chrome version 95 to 101 according to the official documentation, but looking at the token acquisition screen, it seems to be valid up to version 111. I am currently on version 109. Is this one excluded?
https://developer.chrome.com/en/blog/user-agent-reduction-origin-trial/
https://developer.chrome.com/origintrials/#/view_trial/-7123568710593282047
Also, this one is intended to test in a situation where the user agent string and javascript api have been completely removed or changed. Is there another way to test before they are completely removed?
We would appreciate it if you could enlighten us.
I have added the necessary settings to the response headers, referring to the official documentation, but it does not work correctly.
https://developer.chrome.com/en/blog/user-agent-reduction-origin-trial/

WebAssembly crash info in window.onerror()

I am trying to collect crash logs for my WebAssembly application. It's built with emscripten, everything is served from the same domain, testing in Chrome. In the developer console I see a proper error with stack trace when a crash occurs, I'd like to capture this and send it to a server.
Instead I am only getting "Script error." passed to window.onerror() and the fifth parameter is null. This is supposed to happen when violating the same-origin policy (linked question is only about javascript, does not talk about this WebAssembly-specific problem.) Errors occurring in the .js file don't have this problem, only webassembly runtime errors.
I added the crossorigin attribute to the .js file generated by emscripten. The site is running in secure context, the Response object passed to WebAssembly.instantiateStreaming() (in the emscripten-generated .js file) has "basic" as its .type, so as I understand it has no restrictions on what can be done with it. "Access-Control-Allow-Origin" header is set to "*".
For some weird reason I managed to get the full error with stack trace exactly once, so it is apparently possible, but seemingly doing everything the same way I can't get it to work again.
How can this be solved?
instantiateStreaming is promised based so maybe try window.addEventListener('unhandledrejection')?

Exception handling with Realbrowserlocusts

In using realbrowserlocusts class it appears that I'm limited in any exception handling.
The only reference that partially works is: self.client.wait.until(EC.visibility_of_element_located ....
In a failed condition where the element is not found the script simply starts over again. With the script I'm working with I need to maintain a solid session state; I need to throw and exception(report an error), log the user out and then let the script start over again. I've been testing out the behavior with the locust.py script that Nick B. created with several approaches to "try, except" and they work running without realbrowserlocusts (selenium only) but with it the execution just stops.
Any examples would be greatly appreciated.
In its current format I've been able to run 3x the amount of a browser-based load per/agent/slave than our commercial tool. My goal is to replace it with a locust/selenium approach.
locust-plugins's WebdriverUser has a little bit better exception handling I think. A failure to find an element will log a failed request and if you use RescheduleTaskOnFail (as in the the example) it will restart the task when that happens.
https://github.com/SvenskaSpel/locust-plugins/blob/master/examples/webdriver_ex.py

Service Worker not prompting to be registered - net::ERR_FILE_EXISTS

I browsed through the other threads - there was no concrete answer.
I implemented a service worker for notifcations
http://docs.pushwoosh.com/docs/chrome-web-push
I checked everything - all scripts are in root, the keys are well implemented. However, I do not get prompted to allow notifs.
Console output reads:
GET https://mydomain/service-worker.js net::ERR_FILE_EXISTS
Note: I do have the correct URL (just changed it here).
What causes the service worker error? How do I fix this?
It isn't anything to worry about. See the internal bug report: https://code.google.com/p/chromium/issues/detail?id=541797 the TL'DR is that when Chrome tries to fetch a new SW if there is no change and thus nothing to install it throws this error message to indicate that state. There is nothing that you need to do.

HTML 5 Application Cache catch events in Chrome

I've created a website using HTML 5 offline Application Cache and it works well in most cases, but for some users it fails. In Chrome, when the application is being cached, the progress is displayed for each file and also error messages if something goes wrong, like:
Application Cache Checking event
Application Cache Downloading event
...
Application Cache Progress event (7 of 521) http://localhost/HTML5App/js/main.js
...
Application Cache Error event: Failed to commit new cache to storage, would exceed quota.
I've added event listeners to window.applicationCache (error, noupdate, obsolete, etc.), but there is no information stored on the nature of the error.
Is there a way to access this information from the web site using JavaScript ?
I would like to determine somehow which file caused the error or what kind of error occurred.
I believe that the spec doesn't mention that the exact cause of the exception should be included in the error. Currently the console is your only friend.
To wit, your current error "exceed quota" is due to the fact that Chrome currently limits the storage to 5MB. You can work around this by creating an app package that requests unlimited_Storage via the permission model. See http://code.google.com/chrome/apps/docs/developers_guide.html#live for more details.
If you want specific error messages on the "onerror" handler raise a bug on http://crbug.com/new