ERR_BLOCKED_BY_CLIENT and HTML5 Sandbox

Recently, many Microsoft employees taking training courses have reported problems accessing documents linked to in those courses in Chrome and Edge. In Edge, the screen looks like this: But the problem isn’t limited to Microsoft’s internal training platform, and can be easily reproduced in Chrome: What’s going on? There are a number of root causesContinue reading “ERR_BLOCKED_BY_CLIENT and HTML5 Sandbox”

Going Electric – Solar 1 Year Later

In March of 2023, I had an 8kw solar array installed and I was finally permitted to turn it on starting April 21, 2023. My pessimistic/optimistic assumption that my buying an expensive solar array was going to be the trigger for technological breakthroughs in solar technology that rendered my panels obsolete wasn’t entirely unfounded. SureContinue reading “Going Electric – Solar 1 Year Later”

Browser Security Bugs that Aren’t: JavaScript in PDF

A fairly common security bug report is of the form: “I can put JavaScript inside a PDF file and it runs!” For example, open this PDF file with Chrome, and you can see the alert(1) message displayed: Support for JavaScript within PDFs is by-design and expected by the developers of PDF rendering software, including commonContinue reading “Browser Security Bugs that Aren’t: JavaScript in PDF”