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Nothing displays for older browsers now
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Nothing displays for older browsers now

by craigio on Thu Oct 22, 2020 11:31 pm

Using my old laptop (Firefox 52ESR), the dashboards listing screen is fine and some very simple text dashboards are fine, but all other dashboards and feeds can't be viewed at all. The browser window is completely black. (Even the top where navigation buttons would usually be.) Therefore, it is impossible to even edit those dashboards and feeds.

Web console shows that the windows on which this occurs generate these errors:
ReferenceError: ResizeObserver is not defined - application-723514baeb94b70c1ed2.js:2:1081263
TypeError: this.chart is null - application-723514baeb94b70c1ed2.js:2:1081263

These pages have worked fine for years. It looks like you have introduced new code that breaks some browsers, without testing it.

craigio
 
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Re: Nothing displays for older browsers now

by brubell on Fri Oct 23, 2020 9:55 am

Could you please attach screenshots of this so I can send it to our web team?

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Re: Nothing displays for older browsers now

by craigio on Sat Oct 24, 2020 5:06 am

adafruit.jpg
adafruit.jpg (5.21 KiB) Viewed 268 times
brubell wrote:Could you please attach screenshots of this so I can send it to our web team?


Data initially starts to display and then gets wiped.

craigio
 
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Re: Nothing displays for older browsers now

by brubell on Mon Oct 26, 2020 10:21 am

Thank you for the screenshot, an issue has been filed for our web team to take a look at. I'll update this thread as soon as I have more information.

- Brent R.

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Re: Nothing displays for older browsers now

by craigio on Mon Nov 02, 2020 7:41 am

Feeds are even worse than dashboards. Every one of those is blanked out too.

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Re: Nothing displays for older browsers now

by brubell on Wed Nov 04, 2020 11:37 am

craigio wrote:Feeds are even worse than dashboards. Every one of those is blanked out too.

Could you attach a screenshot of what you see? Thanks

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Re: Nothing displays for older browsers now

by craigio on Wed Nov 04, 2020 9:31 pm

brubell wrote:Could you attach a screenshot of what you see? Thanks


They look exactly like the dashboard screenshot.

(By "worse", I mean that 100% feeds are like that, whereas I have one dashboard that is still visible, so they are less than 100% broken.)

craigio
 
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Re: Nothing displays for older browsers now

by craigio on Wed Nov 04, 2020 9:36 pm

In the one dashboard display that works, the "ResizeObserver is not defined" and "TypeError: this.chart is null" errors don't appear.
It is a very simple text-only dashboard, so I guess it doesn't call that code and hence doesn't blank the window.

craigio
 
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Re: Nothing displays for older browsers now

by brubell on Fri Nov 06, 2020 10:27 am

Ok, thanks for including the errors as well. I've updated the support ticket to include the feed page and the dashboard page issue. I (or someone on the web team) will update this thread when there's a patch.

- Brent R.

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Re: Nothing displays for older browsers now

by mpfoster on Mon Nov 23, 2020 12:19 pm

Hi,
I am experiencing the same problem with both my ipad and android pad running firefox and safari.
When I click on feeds or dashboard the screen goes black after i select a dashboard.

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Re: Nothing displays for older browsers now

by jwcooper on Tue Nov 24, 2020 4:39 pm

This issue should now be resolved. Thank you for the error report and provided details.

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Re: Nothing displays for older browsers now

by craigio on Tue Nov 24, 2020 8:46 pm

Looks fine now. (Somewhat different, with the new layout, of course.)

What was the site doing to blank the windows? I'm just wondering as I've seen similar behaviour on some other sites that may or may not be related.

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Re: Nothing displays for older browsers now

by mpfoster on Wed Nov 25, 2020 4:02 am

Mended on my ipad both browsers. Thank you.

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Re: Nothing displays for older browsers now

by jwcooper on Wed Nov 25, 2020 11:39 am

craigio wrote:Looks fine now. (Somewhat different, with the new layout, of course.)

What was the site doing to blank the windows? I'm just wondering as I've seen similar behaviour on some other sites that may or may not be related.


We updated a charting library that had previously included a polyfill for the ResizeObserver. They dropped that polyfill in favor of reducing the library size on a certain build type we use. We now conditionally load that polyfill for the older browsers to continue working.

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Re: Nothing displays for older browsers now

by ratzapper on Sat Nov 28, 2020 8:04 pm

I still have only the blank page. I have attached a screen shot from Web Debugger in Safari. It seems like a resource is still missing - Safari version 12 on an iPhone 6+ running iOS 12.4.9
Attachments
Screen Shot 2020-11-29 at 10.56.34 am.png
Screen Shot 2020-11-29 at 10.56.34 am.png (105.33 KiB) Viewed 37 times

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