26 lines
1.2 KiB
JavaScript
26 lines
1.2 KiB
JavaScript
// Use only ES5 syntax for this script, as it's meant to handle old IE.
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// Note that this can't simply be merged with the other onerror handler with a try/catch,
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// because showMessageBox is async, and could throw an error before dependencies are met (or if there was an error in the error handling),
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// and try doesn't catch errors in async code. It would need to be awaited.
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// And making show_error_message return a promise might cause subtle problems due to the pattern of `return show_error_message()`.
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var old_onerror = window.onerror;
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window.onerror = function (message, source, lineno, colno, error) {
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try {
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// Some errors don't give an error object, like "ResizeObserver loop limit exceeded"
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show_error_message(localize("Internal application error."), error || message);
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} catch (e) {
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old_onerror(message, source, lineno, colno, error);
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}
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};
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if (/MSIE \d|Trident.*rv:/.test(navigator.userAgent)) {
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document.write(
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'<style>body { text-align: center; }</style>' +
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'<div className="not-supported">' +
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'<h1 className="not-supported-header">Internet Explorer is not supported!</h1>' +
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'<p className="not-supported-details">Try Chrome, Firefox, or Edge.</p>' +
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'</div>'
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);
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}
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